When should you see a doctor about excessive sweating?

A clinician will ask where you sweat, whether both sides are affected, when it began, and whether heat or exercise explains it. Sweaty palms or feet may fit a localised sweating condition, while sweating over much of the body can have different triggers. Medicines, hormonal changes, infection, and other health problems can also alter sweating.

Keep track of damp clothing, skin irritation, odour, sleep disruption, and activities you avoid. This helps distinguish a long-standing pattern from a new change that needs a broader medical review.

Wear breathable clothing, change damp socks or garments, and dry skin folds carefully. Record the timing, body areas, triggers, night symptoms, medicines, and any weight change, fever, palpitations, or breathlessness. Do not apply a strong antiperspirant to irritated or broken skin without professional guidance.

Seek urgent help if heavy sweating occurs with chest pain, fainting, severe shortness of breath, confusion, or sudden weakness. Arrange prompt care for sudden unexplained sweating, drenching night sweats, fever, or a major change from your usual pattern.

Ask whether the pattern suggests palmar or plantar hyperhidrosis, whether a medicine or health condition could contribute, and which options suit the affected area. Discuss prescription antiperspirant, iontophoresis, botulinum toxin treatment, or microwave sweat gland treatment when appropriate.