I am 29 year old I use hair colour last ten years my hair fall became 3 years ago I use minoxidil and finasteride lotion three months and my hair fall stop and after some day when I colour my hair then with in 7 days my hair fall became again .then I spindle .when new hair grow then there is no any hair fall but when I applied colour then hair fall take place .my 70% hairs are gray my hair become very weak and thin what I do far this problem.