Docosanol (Topical) (Abreva) - Drugs Information, Side Effects, & Interactions

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Docosanol (doe-KOE-san-ole)

Treats fever blisters and cold sores caused by herpes simplex. This medicine is an antiviral.

Abreva
There may be other brand names for this medicine.

You should not use this medicine if you have had an allergic reaction to docosanol.

Cream

Your doctor will tell you how much of this medicine to apply and how often. Do not use more medicine or apply it more often than your doctor tells you to. Start using this medicine at the first sign of a cold sore or fever blister (pain, burning, tingling).
This medicine is for use on the lips and face only and will not treat genital herpes. Do not apply it near your eyes or on your genitals.
Wash your hands with soap and water before and after using this medicine.
Apply a thin layer to the affected area. Rub it in gently and thoroughly.
Never share your medicine with anyone.

If a dose is missed:

If you miss a dose or forget to use your medicine, apply it as soon as you can. If it is almost time for your next dose, wait until then to apply the medicine and skip the missed dose.
Do not apply extra medicine to make up for a missed dose.

Store the medicine at room temperature, away from heat and direct light. Do not freeze.
Keep all medicine out of the reach of children.

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

If you notice these less serious side effects, talk with your doctor:

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