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natanaru t1_j9tfnq5 wrote

Peroxide is generally bad for open wounds as it destroys the cells around the wound. Edit: wrong , comment below and above correct

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popformulas t1_j9ufnls wrote

Many treatments for canker sores (aphthous ulcers) cause a superficial zone of necrosis. If you think peroxide is harsh, check out debacterol. These treatments typically decrease the duration of discomfort and reduce the time required for the mucosa to heal.

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natanaru t1_j9uk2xg wrote

Interesting, I looked up treatments and why they worked just now and found out the goal of them for cankersores is to debride the ulcer , which makes sense.

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