The difference between baby eczema and prickly heat is that they have different causes, different onset periods and different treatment methods. 1. Etiology: the cause of eczema is still unclear, due to various factors induced by skin inflammation, easy to appear in the cheeks, elbows, knees and other dry, often friction parts of the body; prickly heat is due to the sweat retention in the sweat glands, sweat glands caused by the blockage of the forehead, armpits, back and so on. 2. Period of onset: Eczema occurs in the fall and winter, and may occur throughout the year; prickly heat mainly occurs in the summer. 3. Treatment: eczema is generally a patch of erythema-like changes, can be accompanied by oozing, must use petroleum jelly and other skin moisturizing to repair the barrier function to gradually alleviate; prickly heat for the diffuse light red spots with small papules, a grain by grain. Need to turn on the air conditioning to cool down, wear less can be immediately relieved. Baby’s skin is delicate, according to the temperature reasonable clothing, choose cotton breathable clothing, avoid clothing too thick, can reduce the occurrence of skin diseases.