Dyshidrotic eczema is a skin condition that causes small, itchy blisters on the fingers, toes, palms, and soles of the feet. While the actual cause of dyshidrotic eczema is unknown, it is more common in people who have another form of eczema and tends to run in families, suggesting a genetic component. Some factors that can trigger dyshidrotic eczema include:
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Contact with metals: Nickel, cobalt, or chromium salts can cause dyshidrotic eczema, especially if you work with these metals or wear costume jewelry that contains them.
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Sweaty or wet hands and feet: Dyshidrotic eczema may flare up if your hands and feet are frequently sweaty or wet.
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Warm, humid weather: Hot and humid weather can trigger dyshidrotic eczema in some people.
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Allergies: People with allergies like hay fever are more likely to develop dyshidrotic eczema.
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Other forms of eczema: About half of all people with dyshidrotic eczema also have other types of eczema such as contact and atopic dermatitis.
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Weak immune system: Certain treatments for a weak immune system can trigger dyshidrotic eczema.
In addition to the above triggers, irritants and allergens in the environment can also cause hand eczema, which is a type of contact dermatitis. Common irritants include dust, detergents, cleaning agents, airborne sprays, chemicals used in acrylic nails, and frequent hand-washing or wet wipe use. Allergic hand eczema arises as a result of an allergic reaction to a particular substance in the environment, such as nickel, fragrance ingredients, preservative chemicals, rubber, and various plants. Knowing which substances trigger hand eczema and protecting your hands at home and at work can help guard your skin against further irritation.
