No use one la...
Your blood is acidic, drink alkaline water if possible. Not cheap.
Doctor normally give calamine lotion; face white white till like a ghost.
Face got hole never mind lor.. can be like alcapone or the most handsome bad dude with pimples... or you can change your name to scarface.. lol.
I also have it when I was young, picit till like nobody business.
Swimming is because of the ammonia lah.. it kills the bacteria on the face.. lol. Some people use their urine to wash face.
regarding acne, getting serious liao