Tannic acid applied directly can treat diaper rash, prickly heat, poison ivy, ingrown toenails, and skin rashes; and to stop bleeding.
Heat rash, also known as prickly heat, is a maculopapular rash accompanied by acute inflammation and blocked sweat ducts.
Many children suffer badly from prickly heat, but they are cured in a matter of hours by being put into an air-conditioned room.
