What if iontophoresis does not relieve excessive sweating?

Iontophoresis works by passing a mild electrical current through water-covered skin, commonly on the hands or feet. Results can depend on regular sessions, correct contact with the water, suitable current settings, and maintenance sessions after improvement. Sweating may persist if sessions are irregular, the treated area is not the main source, or another condition or medicine is contributing. Excessive sweating can also affect the underarms or other regions that a home device does not treat in the same way.

Do not increase the current or extend sessions on your own. Irritated, cracked, or numb skin can make treatment less suitable and may need assessment.

Keep a brief record of when sweating occurs, which body areas are affected, how often sessions are completed, and whether the skin becomes sore or dry. Check the device instructions and arrange a review if the equipment does not contact the skin evenly or the routine is difficult to follow. A dermatologist can confirm whether primary hyperhidrosis fits the pattern, look for medication or medical contributors, and discuss alternatives such as topical treatment or another clinician-supervised approach.

Read more about [Excessive Sweating] and [Iontophoresis].

Seek medical advice promptly if sweating begins suddenly, occurs during sleep, or comes with fever, chest discomfort, faintness, unexplained weight change, or marked weakness. Contact a clinician about painful skin cracks, spreading redness, swelling, or signs of infection after treatment. These features need assessment rather than more iontophoresis.

Ask whether the sweating pattern suggests a condition that needs evaluation, whether your current schedule and settings are appropriate, which areas should be treated, and what alternatives are reasonable if the response remains limited.