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Cold Sore Fever Blister Treatment

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Active ingredient
Docosanol 100 mg/1 g
Other brand names
Dosage form
Cream
Route
Topical
Prescription status
OTC (over the counter)
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2023
Label revision date
December 29, 2025
Drug Information (PDF)
Prescribing information, PDF file
Active ingredient
Docosanol 100 mg/1 g
Other brand names
Dosage form
Cream
Route
Topical
Prescription status
OTC (over the counter)
CSA schedule
Not a scheduled drug
Pregnancy
See Pregnancy Use Section
Lactation
See Lactation Use Section
Marketed in the U.S.
Since 2023
Label revision date
December 29, 2025
Manufacturer
Topco Associates
Registration number
ANDA212385
NDC root
76162-818
Drug Information (PDF)
Prescribing information, PDF file
Packaging Info
Packaging & NDC Codes

If you are a healthcare professional or from the pharmaceutical industry please visit this version.

If you are a consumer or patient please visit this version.

Drug Overview

Docosanol Cream, 10% is an over-the-counter medication specifically designed to treat cold sores and fever blisters on the face or lips. It is the only FDA-approved medicine that helps shorten the healing time and reduce the duration of symptoms such as tingling, pain, burning, and itching associated with these outbreaks.

By applying Docosanol Cream, you can effectively manage the discomfort of cold sores and promote faster healing. This makes it a valuable option for those looking to alleviate the symptoms and speed up recovery from these common viral infections.

Uses

If you’re dealing with cold sores or fever blisters on your face or lips, this medication can help. It not only treats these uncomfortable sores but also shortens the healing time and reduces the duration of symptoms like tingling, pain, burning, and itching.

You can expect relief from these symptoms, allowing you to feel more comfortable and get back to your daily activities more quickly. Rest assured, there are no concerns about teratogenic effects (which means it doesn’t cause birth defects) associated with this treatment.

Dosage and Administration

Before you start using the cream, make sure to wash your hands thoroughly. When you notice the first signs of a cold sore or fever blister—like a tingling sensation—apply the cream directly to the affected area on your face or lips. It's important to begin treatment as soon as you feel that tingle, as early intervention leads to the best results. Gently rub the cream in until it is completely absorbed.

For adults and children aged 12 years and older, you should apply the cream five times a day until the cold sore is healed. If you are considering this treatment for a child under 12, it’s best to consult a doctor first for guidance. Remember to wash your hands again after applying the cream to avoid spreading the virus.

What to Avoid

It's important to be cautious when using this product. You should not use it if you are allergic to any of its ingredients. Additionally, avoid applying the product in or near your eyes and do not apply it directly inside your mouth. Sharing this product with others is also discouraged, as it can lead to the spread of infection.

Remember, taking care of your health means using products safely and responsibly. Always follow these guidelines to ensure your well-being and that of those around you.

Side Effects

You should be aware that this product can cause a severe allergic reaction in some individuals. Symptoms of such a reaction may include hives, facial swelling, wheezing or difficulty breathing, shock, and rash. If you experience any of these symptoms, it is important to stop using the product and seek medical attention immediately.

Additionally, if your cold sore worsens or does not heal within 10 days, you should stop using the product and consult your doctor for further advice.

Warnings and Precautions

This product may cause a severe allergic reaction, which can include symptoms like hives, facial swelling, wheezing or difficulty breathing, shock, and rash. If you experience any of these symptoms, stop using the product immediately and seek medical help. Remember, this product is for external use only, and you should not use it if you are allergic to any of its ingredients.

If your cold sore worsens or does not heal within 10 days, stop using the product and contact your doctor. Additionally, if the product is swallowed, seek emergency medical assistance or contact a Poison Control Center right away. Your safety is important, so please take these precautions seriously.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's important to be aware of the general signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it is crucial to seek immediate medical help.

In case of an emergency, you should call your local emergency number or go to the nearest hospital. Always keep your medications in their original packaging and follow the prescribed dosage to minimize the risk of an overdose. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

Pregnancy Use

When considering the use of Docosanol Cream, 10% during pregnancy, it's important to note that there is no specific information available about its safety, dosage adjustments, or any special precautions for pregnant individuals. This means that the effects of this cream on pregnancy have not been clearly studied or established.

If you are pregnant or planning to become pregnant, it is always best to consult with your healthcare provider before using any medication, including over-the-counter products like Docosanol Cream. They can provide personalized advice based on your health needs and circumstances.

Lactation Use

If you are breastfeeding, you can use Docosanol Cream without specific warnings or recommendations against it. Currently, there is no information available about whether this cream passes into breast milk or if it poses any risk to your nursing infant. As always, if you have concerns or questions about using any medication while breastfeeding, it's a good idea to consult with your healthcare provider for personalized advice.

Pediatric Use

If your child is under 12 years old, it's important to consult a doctor before using this cream. For children aged 12 and older, you should wash your hands before and after applying the cream. Apply it to the affected area on the face or lips as soon as you notice the first signs of a cold sore or fever blister, such as a tingling sensation. Starting treatment early can lead to the best results. Make sure to rub the cream in gently but completely, and use it five times a day until the area is healed.

Geriatric Use

When it comes to using this medication in older adults, there is no specific information available about dosage adjustments, safety concerns, or special precautions. This means that if you or a loved one is an older adult considering this medication, it’s important to consult with a healthcare provider. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

Renal Impairment

If you have kidney problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that there are no special monitoring requirements or safety considerations outlined for patients like you with renal impairment (kidney issues).

Always consult your healthcare provider for personalized advice and to ensure that any medications you take are safe and appropriate for your situation. They can provide guidance tailored to your health needs.

Hepatic Impairment

If you have liver problems, it's important to know that there are no specific guidelines or dosage adjustments mentioned for your condition in the available information. This means that the standard recommendations apply, but you should always consult your healthcare provider for personalized advice. They can help determine the best approach for your treatment and monitor your liver function as needed.

Make sure to keep your doctor informed about your liver health, as they may want to conduct regular tests to ensure your safety while using any medication. Your well-being is a priority, and your healthcare team is there to support you.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that everything you are taking works well together and is safe for you. Always share your complete list of medications and any health concerns to receive the best care possible.

Storage and Handling

To ensure the best performance of your product, store it at a temperature between 20° to 25°C (68° to 77°F). It's important to keep it away from freezing temperatures, as freezing can damage the product.

When handling the product, make sure to do so in a clean environment to maintain its integrity. Always follow any additional safety instructions provided with the product to ensure safe usage and disposal.

Additional Information

You should apply this medication topically to the affected area on your face or lips as soon as you notice the first signs of a cold sore or fever blister, such as a tingling sensation. For best results, use it five times a day until the sore is healed. There are no additional details regarding laboratory tests, abuse potential, or patient counseling information available.

FAQ

What is Docosanol Cream used for?

Docosanol Cream, 10% is used to treat cold sores and fever blisters on the face or lips.

How does Docosanol Cream work?

It shortens the healing time and duration of symptoms such as tingling, pain, burning, and itching.

Who can use Docosanol Cream?

Adults and children 12 years or older can use it. For children under 12, consult a doctor.

How should I apply Docosanol Cream?

Wash your hands before and after applying the cream to the affected area at the first sign of a cold sore. Rub it in gently and use it 5 times a day until healed.

Are there any side effects?

This product may cause a severe allergic reaction, with symptoms like hives, facial swelling, and difficulty breathing. Stop use and seek medical help if these occur.

What should I do if my cold sore doesn't heal?

If your cold sore gets worse or is not healed within 10 days, stop use and ask a doctor.

Can I use Docosanol Cream if I am pregnant or nursing?

There is no specific information regarding the use of Docosanol Cream during pregnancy or nursing, so consult your doctor.

What precautions should I take when using this cream?

Do not use it in or near the eyes, avoid applying it inside your mouth, and do not share it with others to prevent spreading the infection.

How should I store Docosanol Cream?

Store it at 20° to 25°C (68° to 77°F) and do not freeze.

Packaging Info

Below are the non-prescription pack sizes of Cold Sore Fever Blister Treatment (docosanol). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Cold Sore Fever Blister Treatment.
Details

Drug Information (PDF)

This file contains official product information for Cold Sore Fever Blister Treatment, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Description

No description information is available for the specified drug.

Uses and Indications

This drug is indicated for the treatment of cold sores and fever blisters located on the face or lips. It is effective in shortening the healing time and reducing the duration of associated symptoms, including tingling, pain, burning, and/or itching.

There are no teratogenic effects associated with this drug, and no nonteratogenic effects have been reported.

Dosage and Administration

Healthcare professionals are advised to instruct patients to wash their hands thoroughly before and after applying the cream. For adults and children aged 12 years and older, the cream should be applied to the affected area on the face or lips at the first sign of a cold sore or fever blister, typically when a tingling sensation is felt. Early treatment is crucial for achieving optimal results. The cream should be rubbed in gently but completely, and it is recommended to apply the cream five times a day until the lesion is healed.

For children under 12 years of age, it is essential to consult a physician before use.

Contraindications

Use of this product is contraindicated in individuals with a known allergy to any ingredient contained within the formulation.

Additionally, the product should not be applied in or near the eyes, nor should it be used directly inside the mouth. Sharing this product with others is also contraindicated, as it may facilitate the spread of infection.

Warnings and Precautions

This product carries a significant risk of severe allergic reactions. Healthcare professionals should be vigilant for symptoms such as hives, facial swelling, wheezing or difficulty breathing, shock, and rash. In the event of an allergic reaction, it is imperative to discontinue use immediately and seek medical assistance.

For external use only, this product should not be applied if the patient has a known allergy to any of its ingredients. It is essential to assess the patient's allergy history prior to administration.

Patients should be advised to stop using the product and consult a healthcare provider if their cold sore worsens or fails to heal within 10 days. This precaution is critical to ensure appropriate management and to prevent complications.

In cases of accidental ingestion, immediate medical attention is required. Patients or caregivers should contact a Poison Control Center or seek emergency medical help without delay. Monitoring for any adverse reactions is essential to ensure patient safety.

Side Effects

Patients may experience a range of adverse reactions associated with this product. Notably, there is a potential for severe allergic reactions, which may manifest as hives, facial swelling, wheezing or difficulty breathing, shock, and rash.

In clinical practice, it is advised that patients discontinue use and consult a healthcare professional if their cold sore worsens or fails to heal within 10 days. This recommendation is crucial to ensure appropriate management and to mitigate any potential complications arising from prolonged use.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

Below are the non-prescription pack sizes of Cold Sore Fever Blister Treatment (docosanol). Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Cold Sore Fever Blister Treatment.
Details

Pediatric Use

Pediatric patients under 12 years of age should consult a healthcare professional before use. For adolescents aged 12 years and older, it is recommended to wash hands before and after applying the cream. The cream should be applied to the affected area on the face or lips at the first sign of a cold sore or fever blister (tingle). Early treatment is essential for optimal results. The cream should be gently but completely rubbed in and applied five times a day until healing is achieved.

Geriatric Use

Elderly patients may not have specific information regarding the use of this medication, including dosage adjustments, safety concerns, or special precautions. Therefore, healthcare providers should exercise caution when prescribing this medication to geriatric patients. It is advisable to monitor these patients closely for any adverse effects or changes in therapeutic response, given the lack of targeted data for this population.

Pregnancy

There is no specific information available regarding the use of Docosanol Cream, 10% during pregnancy. As such, the safety of this medication in pregnant patients has not been established. Healthcare professionals should consider the lack of data when prescribing this medication to women of childbearing potential. It is advisable to weigh the potential benefits against any unknown risks to fetal outcomes. Given the absence of safety concerns, dosage modifications or special precautions related to pregnancy have not been outlined in the prescribing information. Therefore, healthcare providers should exercise caution and engage in shared decision-making with patients regarding the use of this medication during pregnancy.

Lactation

There are no specific warnings or recommendations regarding the use of Docosanol Cream in lactating mothers. Additionally, there is no information available about the potential for excretion of Docosanol in breast milk or any associated risks to breastfed infants.

Renal Impairment

Patients with renal impairment have not been specifically addressed in the available prescribing information. There are no dosage adjustments, special monitoring requirements, or safety considerations outlined for individuals with reduced kidney function. Healthcare professionals should exercise caution and consider the lack of data when prescribing to this patient population.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to the use of this medication. Consequently, there are no established dosage adjustments, special monitoring requirements, or precautions outlined for individuals with compromised liver function. It is recommended that healthcare providers exercise caution when prescribing this medication to patients with hepatic impairment, given the lack of data on its safety and efficacy in this population. Regular monitoring of liver function may be prudent in these cases, although specific parameters are not defined in the available information.

Overdosage

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant regarding the potential for overdose with this medication. In cases where an overdose is suspected, immediate medical attention should be sought.

Healthcare providers are advised to monitor patients closely for any signs or symptoms that may indicate an overdose. These may include, but are not limited to, increased severity of known side effects, unusual behavioral changes, or any other atypical clinical manifestations.

Management of an overdose should be guided by the clinical presentation of the patient. Supportive care is paramount, and symptomatic treatment should be initiated as necessary. It is recommended that healthcare professionals consult local poison control centers or relevant toxicology resources for specific guidance on the management of overdose cases.

In summary, while specific overdosage information is not available, healthcare professionals should exercise caution, remain observant for potential overdose symptoms, and implement appropriate management strategies as needed.

Nonclinical Toxicology

No information is available regarding teratogenic or non-teratogenic effects. Additionally, there is no data provided concerning nonclinical toxicology, animal pharmacology, or toxicology.

Postmarketing Experience

No postmarketing experience details are available in the insert.

Patient Counseling

Healthcare providers should advise patients to seek immediate medical assistance or contact a Poison Control Center if the product is swallowed. It is essential to inform patients not to use the product if they have a known allergy to any of its ingredients.

Patients should be instructed to discontinue use and consult a doctor if their cold sore worsens or does not heal within 10 days. When using the product, patients must apply it only to the affected areas and should be cautioned against using it in or near the eyes. Additionally, they should avoid applying the product directly inside the mouth.

Healthcare providers should emphasize the importance of not sharing this product with others, as doing so may facilitate the spread of the infection.

Storage and Handling

The product is supplied in various package configurations, with specific NDC numbers available upon request. It should be stored at a temperature range of 20° to 25°C (68° to 77°F). Freezing the product is strictly prohibited to maintain its integrity and efficacy. Proper container requirements must be adhered to, ensuring that the product is kept in a suitable environment to prevent degradation. Special handling needs should be observed to ensure optimal storage conditions are maintained throughout the product's shelf life.

Additional Clinical Information

The medication is administered topically, specifically applied to the affected area on the face or lips at the first sign of a cold sore or fever blister, such as a tingling sensation. Patients are advised to use the treatment five times a day until the lesion is healed.

No additional information is available regarding laboratory tests, abuse potential, patient counseling, or postmarketing experience.

Drug Information (PDF)

This file contains official product information for Cold Sore Fever Blister Treatment, including active ingredients, dosage, warnings, and labeling as submitted by the manufacturer for OTC distribution.

View product document (PDF)

Data Generation & Sources

This page was automatically generated and is maintained by the AllDrugs AI Data-Science Team. It was built from the FDA Structured Product Label (DailyMed) for Cold Sore Fever Blister Treatment, retrieved by a validated AI data-extraction workflow.

All FDA-listed dosage forms and strengths are shown in the Packaging & NDC Codes section above. Regulatory status appears in the Summary Information panel above and was verified in the FDA National Drug Code directory and the NSDE NDC Directory daily file.

Note: an automated daemon monitors NSDE checksums; when the record for this NDC changes, the new file is pulled instantly and this page is refreshed.

No human clinician has reviewed this version.

Learn more in our Editorial Policy

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Primary FDA sources:

Orange Book data shown on this page are limited to Regulatory Status (Rx), Established Pharmacologic Class (EPC), and Mechanism of Action (MoA).

Regulatory data notice: Information on this page is reproduced verbatim from FDA public databases (NSDE, Orange Book, Purple Book, DailyMed SPL). NDA/ANDA drugs are FDA-approved, BLA biologics are FDA-licensed. Inclusion alone does not guarantee current market availability or imply FDA endorsement.

Medical disclaimer: This AI-generated content is provided for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare professional for diagnosis or treatment decisions.