hello dr ,i am having some dark spots or patches all over my face ,neck,hands,&back on consulting skin specailist,he recommended me CELIN 500mg TABS ONCE DAILY 90 days , Sunban lotion every morning ,Cleavg cream at bedtime for 90days. just two days before i had started...iam worring vry much because i had done so many treatments on my skin but not get any positive results . will this much treatment is sufficient for my skin ?can i get my orginal skin colour back ,will it work ?how much time will it take ?