What should you know about feet sweat so much?

Some people sweat mainly from the feet without another illness, while others notice sweating with heat, stress, exercise or a medicine. New or widespread sweating can accompany problems such as hyperthyroidism, low blood sugar or heat exhaustion. Night sweating with loud snoring, pauses in breathing or marked daytime sleepiness deserves a broader assessment, including consideration of obstructive sleep apnoea.

Wash and dry the feet thoroughly, especially between the toes. Change socks when damp, alternate shoes so they can dry, and choose breathable materials. A clinician or pharmacist can discuss an antiperspirant suitable for the feet. If sweating interferes with work, sleep or daily activities, options may include iontophoresis, botulinum toxin treatment or microwave sweat gland treatment, depending on your health and the cause.

Book an appointment when sweating is new, severe, occurs during sleep or affects more than the feet. Seek urgent help for sweating with chest pain, fainting, confusion, severe weakness, breathlessness or signs of heat exhaustion. Cracked, painful or infected skin also needs assessment.

Ask whether the pattern fits localised hyperhidrosis, whether medicines or another condition could contribute, and how to protect softened skin. Discuss expected benefits, side effects and practical requirements of iontophoresis, injections or energy-based treatment.