What to expect from microwave sweat gland treatment for underarm sweating

The clinician marks the sweat-producing area and cleans the skin. Numbing medicine helps make the procedure more comfortable. A handpiece then delivers microwave energy at a controlled depth, where heat targets sweat glands while the skin surface is protected. You may feel pressure, warmth or brief pinching as different areas are treated.

Afterward, the underarms can look puffy or feel bruised, tender or numb. Small areas of altered sensation may occur while irritated tissues settle. Sweat reduction develops as treated glands recover, and the result can vary between sides and between people. This treatment is aimed at underarm sweating, not sweating from every body area.

Tell the clinician about medicines, allergies, implanted devices, skin infection, reduced sensation or previous underarm procedures. Follow their instructions about shaving, deodorant and cleansing before the appointment. Wear a loose top so fabric does not rub the treated skin.

Use only the cooling, cleansing or pain-relief measures recommended for you. Avoid rubbing, vigorous exercise, heat exposure and irritating deodorants until the skin has settled. Keep the area clean and watch how swelling and tenderness change rather than judging the result immediately.

Contact the treating clinic promptly if pain is worsening instead of easing, redness is spreading, the area becomes increasingly hot, drainage develops, or you develop a fever. Seek urgent care for breathing difficulty, facial swelling, widespread hives, severe weakness or rapidly worsening symptoms. New or persistent numbness should also be reported so the clinician can examine it.

Ask which underarm areas will be treated, what kind of numbing is planned, how long swelling commonly lasts in their practice, and when deodorant or exercise can restart. Ask how they will assess your response and what alternatives exist if sweating continues.