I have a itching problem all over my body which I think caused by taking bath with rain water which was stored in one of a ground cemented water storage, after having bath with stored rain water some small-small type boil came out and it itches like hell, the more I scratch the more it spread now my body is full with marks of scratches so please tell me which medicine should I take because now even clean water reacts with my skin and the next things I know is boil type things popping out of my skin I so do you hav a suggestion please help me which medicine is good or what is its cure.