What should you know about sweaty feet during winter?

Thick socks, insulated boots, and shoes worn indoors can hold heat around the soles. The feet may sweat inside the shoe even while the surrounding air is cool. Some people have plantar hyperhidrosis, so the soles sweat in response to nerve signals rather than outdoor temperature. Dampness can soften the skin between the toes and encourage itching, peeling, odor, or Athlete's Foot.

The [Excessive Sweating](/symptoms/excessive-sweating/) guide explains when sweating is more than a normal response to heat or activity.

Rotate shoes so each pair can dry fully, change socks after they become damp, and dry between the toes after bathing. Choose moisture-wicking socks and avoid wearing tight, non-breathable footwear for long periods. Do not use strong products on broken or inflamed skin. If these measures are not enough, a clinician may discuss [Prescription Antiperspirant](/treatments/medical-dermatology/prescription-antiperspirant/) or [Iontophoresis](/treatments/laser-and-energy/iontophoresis/).

Book an appointment if sweating continues in cool, comfortable settings, disrupts work or sleep, or comes with sudden changes elsewhere in the body. Seek prompt care for painful cracks, spreading redness, swelling, pus, severe itching, or fever. Persistent peeling or odor may need assessment for Athlete's Foot rather than treatment as simple moisture.

Could my boots or socks be trapping too much heat? Do the skin changes suggest Athlete's Foot? Would an antiperspirant or iontophoresis plan suit the soles, and how should I protect irritated skin?