How to distinguish eczema from prickly heat

The difference between eczema and prickly heat has different causes, onset time, skin lesion morphology, itching degree, course of disease, onset population, accompanying symptoms, etc. 1. The etiology of eczema is more complex, which may be related to genetic, allergic, autoimmune, infection, environmental and other factors, and is the result of the interaction of internal and external factors; And prickly heat is mainly due to high temperature sultry environment, sweat discharge is not smooth, retention in the skin caused. 2. onset time eczema can occur in any season, no obvious seasonal; prickly heat occurs in hot summer. 3. Lesion morphology The lesions of eczema are various in shape, which can be manifested as erythema, papules, blisters, erosion, exudation, scab, etc., often symmetrically distributed, and the boundaries are not clear; The prickly heat is mainly red papules or hillocks with needle tip to miliary size, dense patches, among which the red prickly heat has slight redness, the white prickly heat has no redness, and the crystal prickly heat is a transparent blister with needle tip size. The skin lesion shape is relatively single, and it is mostly distributed in the parts that are easy to sweat. 4. The degree of itching Eczema usually has obvious itching, even severe itching; Prickly heat generally has mild itching and can be relieved quickly in a cool environment. 5. Course of disease Eczema tends to recur frequently and has a long course of disease; prickly heat can resolve quickly in a cool environment and has a short course of disease. 6. Eczema can occur in people with the disease. At any age; prickly heat is more common in infants, children and other people whose sweat glands are not fully developed. 7. Accompanied symptoms eczema In addition to skin manifestations, may also be accompanied by other allergic symptoms; prickly heat generally has no other special accompanying symptoms.