sir..i m vina 25 year old..i was having many pimples in my face before and I controlled by having diet and drinking plenty of water,I m fair and black marks of pimples are very odd to my face ,,i m consulted in my skin specialist doctor gave some tablets .minicycline @ tuf acne-20, 1 month 3 days in a week...whether can I continue this tablets further,pls advice me!!!