Dyshidrotic eczema and sweat

Dyshidrotic eczema, also called pompholyx, can flare when skin stays warm, damp or irritated. Sweat is not the only possible trigger, and having sweaty hands or feet does not by itself diagnose eczema. Small fluid-filled blisters often appear along the sides of fingers, palms, toes or soles. They can itch or burn before the skin becomes dry, cracked and sore. Friction, frequent washing, contact with irritants and emotional stress may also contribute.

Gently wash with lukewarm water and a fragrance-free cleanser, then pat dry carefully between the fingers and toes. Change damp socks and choose breathable footwear. During sweaty tasks, use protective gloves suited to the work, with cotton liners if tolerated, and take breaks to let the skin dry. Apply a plain, fragrance-free moisturiser after washing. Do not puncture blisters or peel loose skin. A clinician may recommend a topical corticosteroid for an inflamed flare; persistent disease may need another plan.

Arrange an assessment if blisters keep returning, interfere with walking or hand use, or do not settle with gentle care. Seek prompt help for spreading redness, increasing warmth, pus, yellow crusting, fever or rapidly worsening pain, because broken skin can become infected. A dermatologist can distinguish dyshidrotic eczema from contact dermatitis, fungal infection and other blistering conditions.

Ask whether sweat, footwear, gloves, metals, cleansers or another exposure could be contributing. You can also ask which moisturiser and prescription treatment suit the affected site, how long to use them, and what changes should prompt review.