you can't damage yourself with these treatments. if you get salicylic acid on normal skin it can cause burning or redness but never infection or scarring. all you have to do is stop using it on irritated areas and the skin returns to normal. still it's probably better not to use salicylic acid on sensitive areas like the face or groin where it's likely to make nearby skin raw and uncomfortable. it generally is recommended that salicylic acid not be used by people with diabetes or in areas where there is poor circulation because of concern about how normally the skin can heal; however in practice salicylic acid is withheld only when there are clear signs of ongoing inflammation of the skin. likewise nonprescription freezing products are also safe but must be used carefully and only according to package instructions.
is it safe to use over-the-counter wart treatments?