I've heard and read a few times before that the popular 3% hydrogen peroxide topical antiseptic solution is very toxic and impedes the healing process, which I ignored a lot of time. Today, I read from a very realiable medical source that many tests have been done and they found out that hydrogen peroxide actually damages the outside layer of the skin and impairs cells called fibroblasts, which is crucial to the healing process. I used hydrogen peroxide a couple of times before and come to think it if, I remember that it took an unusually longer amount of time to heal than if I put some antiboitics like neomycin, gentacmicin, or bactracin on it. There's a very good chance it is very toxic, because at 5% it is a bleaching agent. At 3%, it's foaming action is similar to that of the 5%, so it's still toxic. At any rate, I'm going to stop using hydrogen peroxide for my wounds.