Dyshidrosis also known as acute vesiculobullous hand eczema, cheiropompholyx, dyshidrotic eczema, pompholyx and podopompholyx) is a skin condition that is characterized by small blisters on the hands or feet. It is an acute, chronic, or recurrent dermatosis of the fingers, palms, and soles, characterized by a sudden onset of many deep-seated pruritic, clear vesicles, later, scaling, fissures and lichenification occur. Many eczema cases which are diagnosed are garden-variety atopic eczema. This condition do not spread to others, but the compromised integument can increase susceptibility to infection, and the accompanying itching can be a source of psychological distress.
Recurrence is common and for many can be chronic. Incidence/prevalence is said to be 1/5,000 in the United States. Dyshidrotic eczema occurs in 5-20% of patients with hand eczema and more commonly develops in warmer climates and during spring and summer months (seasonal or summer pompholyx).
The male-to-female ratio for dyshidrotic eczema has variably been reported as 1:1 and 1:2. Dyshidrotic eczema affects individuals aged 4-76 years; the mean age is 38 years. The peak incidence of the condition occurs in patients aged 20-40 years. After middle age, the frequency of dyshidrotic eczema episodes tends to decrease.