Iontophoresis is a technique which uses an electric current to deliver a medicine or other chemical through the skin. In popular (layman) terms it is sometimes called “an injection without the needle”. In the past it has sometimes been called Electromotive Drug Administration, though in modern therapy, this is a rarely employed term.
Common diagnoses treated with iontophoresis include plantar fasciitis, bursitis, lateral and medial epicondylitis (commonly referred to as tennis elbow and golfers elbow respectively) and some types of palmar-plantar hyperhidrosis.