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Doctor insights on: Benzoyl Peroxide Cold Sore

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Dr. Heidi Fowler
1,014 doctors shared insights

Cold Sore (Definition)

Also referred to as fever blisters, cold sores are small, painful fluid-filled blisters that are usually found around the lips. Cold sores are generally caused by the herpes simplex virus 1 which is related to herpes simplex virus 2 that causes genital herpes. Cold sores are very contagious and can be spread by mouth to mouth contact. They can spread to the genitalia and cause genital ...Read more


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After using clearasil (benzoyl peroxide) my face is red, sore to touch, dry and i'm breaking out horribly. Could this be an allergic reaction? What could I do to two it?

After using clearasil (benzoyl peroxide) my face is red, sore to touch, dry and i'm breaking out horribly. Could this be an allergic reaction? What could I do to two it?

Cosmetic reaction: Clearasil (benzoyl peroxide) has different ingredients for different purposes.When your skin breaks out at the site which has contact with it, it can be due to either allergy or irritation. If symptoms are outside of the area that your skin has contacts with, it is more likely that you are allergic to one of the ingredients in the lotion/solution. In all case, you should stop using it and see a doc to be evaluated. ...Read more

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What to use for canker or cold sore in mouth? Peroxide and water?

What to use for canker or cold sore in mouth? Peroxide and water?

Canker\Cold sores?: Canker sores (aphthous ulcers) are totally different from true cold sores that are caused by a virus. There are many otc medications that can be purchased at your local pharmacy. They all help somewhat but normally it just runs its course. The first few days are usually the most painful. Cold sore relief may be helped by antiviral medication but only if taken early enough. ...Read more

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Should I be embarrassed about a cold sore? And will yogurt and peroxide really help?

Cold sore tx.: Although easier said than done you should not be embarrassed. A cold sore is caused by the same virus as chickenpox. Herpes zoster. Yogurt and peroxide will not be helpful. Talk to your doctor about getting a prescription of Zovirax (acyclovir) cream or ointment. ...Read more

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Can cold sore remedies work?

Can cold sore remedies work?

Cold sore: Applying a lip balm containing 1% lemon balm (melissa officinalis) shortens healing time, prevent infection spread, and reduces symptoms of recurring cold sores. Also taking lysine orally can help. http://www.ncbi.nlm.nih.gov/pubmed/3115841?dopt=abstract topical treatment with a cream containing sage and rhubarb (rheum officinale and rheum palmatum) may be about as effective as zovirax (acyclovir). ...Read more

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Dr. Patricia Foster
279 doctors shared insights

Benzoyl Peroxide (Definition)

Benzoyl peroxide is an acne agent which is a ...Read more


Dr. Al Hegab
186 doctors shared insights

Clearasil (Definition)

Clearsil is an acne agent which is a ...Read more