What to expect from iontophoresis for hyperhidrosis

Iontophoresis places the sweating area in water-filled trays connected to a treatment device. The current is adjusted gradually and should feel like tingling or warmth rather than a sharp sensation. It is commonly used for palms and soles, and a clinician can explain whether another area is suitable. Improvement usually requires a starting course of sessions, followed by maintenance when sweating begins to return. Results vary, and the treatment controls sweating rather than removing the underlying tendency to sweat.

Tell the clinician about broken skin, eczema, metal implants, heart rhythm devices, pregnancy, or medicines that may affect treatment choice. Remove jewellery from the treatment area and follow the device instructions exactly. Do not place the electrodes directly on irritated or open skin. A bland moisturiser may help dryness after a session if your clinician agrees. Keep a simple note of sweating, skin comfort, and how long any benefit lasts so the treatment schedule can be adjusted.

Stop the session and contact the treating clinician if you develop a burn, blistering, marked swelling, persistent numbness, or pain that does not settle after the device is stopped. Seek urgent medical care for fainting, chest discomfort, trouble breathing, or a severe allergic reaction. New sweating that is widespread, occurs during sleep, or comes with fever, weight change, palpitations, or weakness deserves medical assessment because it may need a different evaluation.

Ask which body areas can be treated, how the current should feel, how often maintenance may be needed, and what to do if the skin becomes dry or irritated. Confirm whether your medical devices, pregnancy status, skin condition, or medicines change the plan.