Iontophoresis works by passing a low dose electrical current through wet skin in order to coagulate protein in the sweat ducts that then form temporary poral plugs. The partial blocking of the sweat glands subsequently reduces the rate of perspiration. The treatment involves the various areas of the body being immersed in water or having damp pads attached through which the electrical current is passed for around twenty to thirty minutes. The process causes a strong tickling sensation that varies according to the strength of the current used. Hospital machines are able to administer higher doses under medical supervision and are therefore more effective than home kits, which are now readily available. Iontophoresis is certainly a safe and useful complimentary treatment to an antiperspirant, especially for Palmar (hands) and Plantar (feet) hyperhidrosis; however, some individuals may find the necessary regime too inconvenient.