Clinical Dermatology
Medical management of excessive sweating — Botox injections for underarms, palms, and forehead. Long-lasting relief from embarrassing sweat patches.
Hyperhidrosis is a medical condition characterized by sweating that exceeds what is necessary for thermoregulation. It affects approximately 3% of the population and can be socially and professionally debilitating — ruining clothing, making handshakes embarrassing, and causing constant anxiety about visible sweat marks.
Types of hyperhidrosis:
Primary focal hyperhidrosis: The most common form. Excessive sweating limited to specific areas — underarms, palms, soles, face, or scalp. Usually bilateral and symmetric. Begins in adolescence and has a genetic component.
Secondary generalized hyperhidrosis: Sweating all over the body, caused by an underlying condition (thyroid disorder, diabetes, menopause, medication side effects). This requires medical investigation and treatment of the underlying cause.
Treatment at Vernon:
Botox for hyperhidrosis (first-line for axillary and palmar):
Botulinum toxin blocks the nerve signals that activate sweat glands. When injected into the affected area, it produces a dramatic reduction in sweating within 3–7 days, lasting 6–12 months.
Underarm (axillary) treatment: The most commonly treated area. Approximately 50 units of Botox per underarm, injected in a grid pattern at 1–2cm intervals. Sweat reduction: 80–90%. Duration: 6–12 months.
Palm (palmar) treatment: More technically challenging due to the density of nerve endings in the palms (making it more painful) and the importance of preserving grip strength. We use nerve block anesthesia for comfort. Sweat reduction: 80–90%. Duration: 4–6 months.
Forehead/scalp treatment: Effective for patients whose face/head sweats excessively during meetings, social situations, or mild exertion. Careful dosing prevents affecting forehead muscle movement.
The starch-iodine test: Before treatment, Our doctors perform a starch-iodine test to map the exact areas of maximum sweating. This ensures Botox is placed precisely where it is needed, maximizing effectiveness and minimizing units used.
Topical options:
Prescription-strength antiperspirants (aluminum chloride 20%): Applied nightly to affected areas. Effective for mild hyperhidrosis but can cause skin irritation.
Glycopyrrolate topical solution: An anticholinergic that blocks sweat gland activation. Applied to the skin surface.
When sweating affects quality of life — treat it. Hyperhidrosis is a legitimate medical condition, not a hygiene issue. Effective treatment exists and can be transformative.
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