iontophoresis

/aɪˌɑntoʊfəˈriːsɪs/
noun
  1. A medical treatment that uses a mild electrical current to push medicine through the skin into the body.
    • Iontophoresis can help treat excessive sweating by passing a mild current through the skin.
    • Doctors sometimes use iontophoresis to deliver anti-inflammatory drugs directly to a sore joint.
    • The physical therapist applied iontophoresis to reduce swelling in the patient's knee.