My Son Jatin is 12 years & facing a problem of SKIN converting in dark black/brown. It starts from stomach & moved on whole body & face also. Under Treatment of Skin Specialist doctor no result came and a homeopathy doctor said that the melanin is increasing heavily in the body. another doctor treated the cause that was stomach worms and now from last 6-7 month regular medicine is going on & melanin as said started decreasing. I need more help on this.