What should you know about hyperhidrosis devices?

The right option depends on where you sweat and whether the problem affects the hands, feet, underarms, or more than one region. Iontophoresis uses a mild electrical current while the hands or feet rest in water. Microwave sweat gland treatment uses energy delivered to underarm tissue. These approaches do not treat every cause of sweating, so a clinician may first review medicines, health conditions, and the pattern of symptoms.

A device may lessen moisture without changing the underlying tendency to sweat. Skin irritation, temporary tenderness, or the need for repeat sessions can vary by treatment and body area.

Record the areas affected, situations that trigger sweating, and whether it occurs during sleep. Keep skin folds and feet dry, change damp socks or clothing, and use breathable footwear. A dermatologist can compare device treatment with prescription antiperspirant, botulinum toxin injections, or another approach.

For background, see Excessive Sweating, Iontophoresis, Microwave Sweat Gland Treatment, and Prescription Antiperspirant.

Arrange medical assessment if sweating begins suddenly, becomes much heavier, occurs during sleep, or comes with fever, faintness, chest discomfort, breathlessness, weight change, or a racing heartbeat. Seek urgent help for severe chest symptoms, confusion, or collapse. Cracked skin, persistent redness, swelling, or signs of infection also need review.

Ask which device matches the body area involved, how often it is used, what sensations or skin reactions to expect, and how progress will be checked. Ask whether a medicine or health condition could be contributing and what alternative is suitable if the device is uncomfortable or ineffective.