Abreva, with the active ingredient docosanol, is an over-the-counter medication approved by the U.S. Food and Drug Administration (FDA) for the treatment of cold sores caused by the herpes simplex virus [1]. It functions by forming a barrier on the skin to help heal the sore [1].
How quickly can Abreva start working?
Abreva is intended to shorten the healing time of cold sores [1]. Clinical studies have shown that it can reduce healing time by an average of one day compared to a placebo [1]. Users may begin to see results after application begins [1].
What is the recommended way to use Abreva?
Abreva should be applied directly to the cold sore at the first sign of tingling, itching, or burning [1]. It is typically applied five times a day for up to four days [1]. It is important to wash hands before and after application to avoid spreading the virus [1].
Are there any side effects associated with Abreva?
The most common side effects reported with Abreva are headache and skin reactions at the application site [1]. These reactions are generally mild [1].
What is docosanol and how does it help cold sores?
Docosanol is a saturated fatty alcohol [1]. Its precise mechanism of action in treating cold sores is not fully understood, but it is believed to work by inhibiting the fusion of the herpes simplex virus to the human cell membrane, thereby preventing the virus from entering the cell and replicating [1].
Can Abreva prevent cold sores from coming back?
Abreva is designed to treat existing cold sores, not to prevent future outbreaks [1]. It does not cure the herpes simplex virus itself, which remains dormant in the body [1].
Where can I buy Abreva?
Abreva is available without a prescription at most pharmacies, drug stores, and supermarkets [1].
How does Abreva compare to other cold sore treatments?
Abreva is one of several over-the-counter options for cold sore relief. Other treatments may contain different active ingredients, such as acyclovir or penciclovir, which are antiviral medications that work by inhibiting viral DNA replication [2]. Prescription medications are also available for more severe or frequent outbreaks [2].
What are the active ingredients in Abreva?
The active ingredient in Abreva is docosanol 10% [1]. It also contains inactive ingredients such as benzyl alcohol, cetyl alcohol, cocoa butter, mineral oil, oleyl alcohol, polysorbate 60, propylene glycol, purified water, sorbitan monostearate, and stearyl alcohol [1].
Are there any specific warnings or precautions for using Abreva?
Abreva is for external use only and should not be used in or near the eyes [1]. It should not be used on immunocompromised individuals without consulting a healthcare professional [1]. If a cold sore does not begin to heal within four days, or if symptoms worsen, users should stop use and consult a doctor [1].
Sources:
1. DrugPatentWatch.com
2. National Institutes of Health