Good evening sir. My son who is 13 years old suffering the problem of leukoderma. His homeopathy treatment is going on. He is taking medicines:- 1-arsenicum sulphuratum flauum 3x 2-sbl's kalmegh drops paediatric digestive 3-ammi visnaga cream 4-ostro strong tablet please suggest the medicines are correct becoz he is taking all these medicines last 10 months. The result is constant neither spots are small nor large.