What Are the Causes of Chronic Dyshidrotic Eczema?
Disease description:
I’ve recently developed many small red rashes on my hands, accompanied by mild itching. My mother says it’s dyshidrotic eczema—what are the possible causes of this condition?
Doctor's answer (1)
Dr. Liu Wan
Dyshidrotic eczema has a complex etiology and may be associated with genetic predisposition, psychological stress, excessive cleansing, contact with water or detergents (e.g., laundry powder), and hyperhidrosis of the palms and soles. As dyshidrotic eczema tends to cluster within families, a genetic component is likely involved—meaning some individuals are inherently more susceptible to developing this condition. The disease commonly flares in summer and improves during winter; its severity correlates positively with the degree of palmar and plantar sweating. Exacerbations frequently occur during periods of psychological stress, underscoring the significant roles of localized hyperhidrosis and psychogenic factors. Additionally, irritants such as soap and hand wash may contribute to dyshidrotic eczema; minimizing exposure to these agents can help reduce recurrent episodes. Topical calamine lotion may be used for its astringent and antipruritic effects.
