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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Blister Inside Mouth And Blood Oozing After Squeezing. Is It Normal To Have White Skin Covering The Sore After Applying Hydrogen Peroxide?

I had a blister on the inside of my mouth, it was a canker sore, and I wanted to get rid of it. I took a pair of tiny scissors and cut it open, but only blood came out. I was hoping for the puss, or whatever is on the inside of a canker sore to come out. After pushing blood out, I put hydrogen peroxide on a q-tip, and lightly brushed over the canker sore a few times. After doing so, there is a white, skin on the inside of my lip covering the sore. Is the white skin bad for me, or is it just healing?
Mon, 2 Dec 2013
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  User's Response
HI
Thank foe asking to HCM
You really did the wrong thing you were not suppose to do such work on the lesion it may be dangerous, the white coating could be due to Hydrogen peroxide that you applied in fact hydrogen peroxide can only be applied on eternal skin and not orally, now just leave it like that only for few days it will be fine now no more tempering have nice day.
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Blister Inside Mouth And Blood Oozing After Squeezing. Is It Normal To Have White Skin Covering The Sore After Applying Hydrogen Peroxide?

HI Thank foe asking to HCM You really did the wrong thing you were not suppose to do such work on the lesion it may be dangerous, the white coating could be due to Hydrogen peroxide that you applied in fact hydrogen peroxide can only be applied on eternal skin and not orally, now just leave it like that only for few days it will be fine now no more tempering have nice day.