What Is the First Treatment for Hyperhidrosis?

Hyperhidrosis is sweating that is greater than the body needs for cooling and may affect the underarms, palms, feet, face, or other areas. Prescription antiperspirants reduce sweat reaching the skin surface. They can irritate, so application instructions matter; many people apply them at night to completely dry skin and wash them off as advised.

Keep a brief record of where sweating occurs, when it starts, and whether heat, emotions, food, or medicines trigger it. If an antiperspirant is insufficient or difficult to tolerate, a clinician may discuss iontophoresis for hands or feet, botulinum toxin injections, or microwave sweat gland treatment for suitable areas. The choice depends on body site, skin condition, and goals.

Arrange medical review if heavy sweating begins suddenly, happens during sleep, affects the whole body, or comes with fever, weight change, chest symptoms, dizziness, or a racing heartbeat. These patterns can reflect a medicine effect or another health condition rather than primary hyperhidrosis.

Where should I apply the prescription antiperspirant? What can reduce irritation? Would iontophoresis suit my affected area, and when should we consider another option?