Hi Doctor I have small balls in my head though its not a pimple but paining initially and wen dry it becomes itchy also due to water change there is some dandruff like deposit on my scalp due to this my hair is falling n became rough. Also there is gray hairs but the pattern is very unusual as in one hair their is three colors black, bright and shiny brown and gray. Though I use heena very less once in a two months approx or more than two months. Pls suggest me any solution. Thank you.