What to expect from prescription antiperspirant for hyperhidrosis

Prescription antiperspirants temporarily narrow or plug sweat-duct openings at the surface. They work only where applied, so a clinician may tailor the plan for underarms, palms, soles, or another site. They control sweat rather than treating every possible cause of excessive sweating. Dryness, itching, redness, or a burning feeling can occur during the adjustment period.

Apply exactly as directed, commonly to clean, fully dry skin before bed. Let the product dry before dressing and wash it off at the recommended time. Avoid broken or freshly irritated skin. Keep a simple record of the treated area, application nights, sweat changes, and skin reactions; this gives your clinician useful information when deciding whether to continue, reduce, or change treatment.

Contact a clinician promptly for severe burning, blisters, facial swelling, breathing difficulty, or a rapidly spreading rash. Arrange assessment for new sweating during sleep, sudden change from your usual pattern, or sweating accompanied by faintness, fever, chest symptoms, or unexplained weight change.

Ask which body areas are appropriate, how long to try the routine, what to do after a missed application, and which alternatives are available if skin irritation or ongoing sweat remains troublesome.