Getcha some colloidal silver cream (silver sulphadiazine) if it is local to skin only, will stop any infections and most inflammations.
(dollar stores sell it as burn cream, check ingredients for silver)
Wanna hit that benadryl cream or pill also if your itchin. Good luck, allergies are hard to nail down.
I once had a shellfish allergy that just appeared overnight, and eat the hella seafood. after a long bout with nearly closing my throat on several occasions, I figured out the chewing gum I used had been 'upgraded' with a chemical ingredient that triggered the allergy. Stopped the gum and eating shellfish ever since. (that chemical started with "phenol... " but I dont recall it's full name)