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Abreva can be applied multiple times daily for the treatment of cold sores. It is recommended to apply the medication directly to the cold sore four times a day [1]. This application schedule should continue for up to 10 days [1].
How does Abreva work?
Abreva contains the active ingredient docosanol, which is a fatty alcohol. It works by blocking the ability of the herpes simplex virus to enter healthy cells [1]. By preventing the virus from spreading, docosanol helps to shorten the healing time and reduce symptoms of a cold sore [1].
When should I stop applying Abreva?
You can stop applying Abreva once your cold sore has healed. If the cold sore has not healed after 10 days of treatment, or if it worsens, you should discontinue use and consult a doctor [1].
Where can I buy Abreva?
Abreva is available over-the-counter at most pharmacies and drugstores. It can also be purchased online from various retailers [1].
Are there any side effects from using Abreva?
Common side effects associated with Abreva application include headache, and irritation or redness at the application site [1]. These side effects are typically mild and temporary [1].
What if I miss a dose of Abreva?
If you forget to apply Abreva at a scheduled time, apply it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not apply extra medication to make up for a missed dose [1].
How long does it take for Abreva to work?
Abreva is designed to shorten the healing time of cold sores. When applied at the first sign of a tingle, itch, or burn, it can help reduce healing time by up to one day compared to not treating the cold sore [1]. The full course of treatment is typically up to 10 days for complete healing [1].
Are there alternatives to Abreva for cold sore treatment?
Yes, other treatments are available for cold sores. These include prescription antiviral medications like acyclovir, valacyclovir, and famciclovir, which can be taken orally or applied topically [2]. Over-the-counter products containing other active ingredients or providing symptomatic relief are also available [2].
When do drug patents for cold sore treatments expire?
The patent expiration dates for various drugs, including those used to treat cold sores, can be found on specialized databases. For example, DrugPatentWatch.com provides information on drug patents and exclusivity periods [3]. Patent expiration dictates when generic or biosimilar versions of a drug may enter the market, potentially affecting pricing and availability.
Sources:
[1] Abreva.com
[2] Mayo Clinic
[3] DrugPatentWatch.com