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Doctor insights on: Cold Sore Hydrogen Peroxide

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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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Can hydrogen peroxide make your throat sore?

Can hydrogen peroxide make your throat sore?

Yes if excessive: Like anything in life, too much of a good thing can be bad. Hydrogen peroxide 3%, mixed in equal part with water, is sometimes used to kill germ in the back of throat by gargling. However, excessive gargling with this solution or use of the solution without diluting with water can irritate the lining of throat and cause sore throat. ...Read more

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Thoughts? Could putting hydrogen peroxide on my canker sore help cure it?

Thoughts? Could putting hydrogen peroxide on my canker sore help cure it?

Maybe: It can help reduce the discomfort and maybe hasten healing. Canker sores usually last about 2 weeks by themselves. ...Read more

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Treated canker sore with hydrogen peroxide and it got twice as big and painful. I've had the sore for 3 days now. What can I do?

Treated canker sore with hydrogen peroxide and it got twice as big and painful. I've had the sore for 3 days now. What can I do?

Canker sores: canker sores can be treated with cortisone cream or liquid maalox or mylanta topically.Donot use Hydrpgen peroxide can destroy tissue do not use this You need a doctor visit online healthtap or in person to diagnose and treat ...Read more

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Nose still split and sore. Treated with hydrogen peroxide and vacate in which cleared it up for only a few days. That treatment won't work any more.

Nose still split and sore. Treated with hydrogen peroxide and vacate in which cleared it up for only a few days. That treatment won't work any more.

Vestibulitis: It depends where your nose is sore, but if it is around the nostrils, you can get a low grade infection in the nostril entrance which causes redness, pain, splitting of the nasal skin, crusting and it can be stubborn. It often requires a topical antibiotic and sometimes oral antibiotic. The hydrogen peroxide may be too irritating and drying. Should see a doctor. ...Read more

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Is it safe to gargle with a small (cap full) of hydrogen peroxide for a sore throat? Will it help stop the soar throat early?

Is it safe to gargle with a small (cap full) of hydrogen peroxide for a sore throat? Will it help stop the soar throat early?

yes/no: Peroxide will breakdown to water after it releases all of its extra oxygen . Its use as a gargle has been offered by some as a treatment, but little if any benefit is documented. ...Read more

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Itchy tender ear canal. Hydrogen peroxide burns it. Have this problem often, but worse this time. Never use cotton swabs or swim. How do I fix this?

Itchy tender ear canal. Hydrogen peroxide burns it. Have this problem often, but worse this time. Never use cotton swabs or swim. How do I fix this?

Otitis externa: It could be infected and may need antibiotic ear drops. In many cases, chronic otitis externa is an eczematous condition that responds to other ear drops that can be prescribed. See ENT. ...Read more