Bright red sore behind ear going up onto scalp , oozing oily liquid. Have had a problem with dry and flaky scalp yet oily hair for 4-5 years. Wash hair once-twice a week maximum. Recently trying (last 2-3 months) dandruff shampoo - not helping. Dyed just front part of hair twice within last 6 months (bangs) but have long hair. Could dye be the problem? No spots anywhere else. Could shampoos/hair-care products be the problem (use minimal of these), Could a liquid body soap cause problems in other places? Other Info: 19 years old Only regular earring piercings (2 in lobe only) over 10 years old. Rash on legs and arms that has been ongoing for over 1 year which we believe was the laundry soap as seems to be slowly healing now that we ve gone to baby laundry detergent. Patient is allergic to naproxen , and wasp stings. Makes me think allergies.
You can get allergy to any product at any time at any age all the things you asked can cause this even if you use sometimes means nothing once you are exposed to allergen it takes 3 weeks for body to adjust again advise you to start with keep skin Chat Doctor.