Treating cold sores or fever blisters on the face or lips and shortening the duration of symptoms (eg, tingling, pain, itching, burning).
Abreva is an antiviral medication used to shorten the duration of cold sores caused by the herpes simplex virus. The active ingredient of the medication is a drug called docosanol, whose mechanism of action is currently unknown. Abreva is applied as a topical cream once the cold sore begins to develop. Abreva is advantageous not least because there are no serious side effects.