Hi, I am a boy aged 19. I have been suffering from acne(blackheads mostly) from my childhood, until recently 2yrs back when i used deriva cms and isotroin-20, my acne was almost gone. But, now again i have a severe acne problem around both sides of my mouth. Currently i am using spongysal facewash , nexret gel and isotroin-20. I have been using them for 10 days now and i see not much improvement. I want your suggestion on what i should do? Also, should i use any natural therapy? Thank You