First of all, you need to know what the term skin flora refers to. Skin flora refers to various bacteria and microbes which live on our bodies or inside of them. They are found all over our bodies, however, there are particular areas where their concentration is higher. For example, this is the case with hands, perineal area, groin, armpits, trunk, and arms.
The use of illegal drugs or the use of prescription or over-the-counter drugs for purposes other than those which they are meant to be used, or in excessive amounts.