I have hyperpigmentation on my both arms, fore-head and back. These marks generally come with white puss, which gets pricked and leaves darks marks behind. Quite disgusting in fact. I have used lemon solution and didn' t help much. I am using creams such as venusia, sedmed, peellite, adban thf, halox and antoxia hc (antioxidant). Actually, none seems to have worked. I am open for surgery or whatever can treat this at low cost. Please consult. Also, I masturbate once alternatively. Sometimes daily. Is it an abnormal behavior? can hormonal change due to masturbation cause this hyperpigmentation? penis looks fine though.