Baby fever and eczema are two different things. Fever is an immune defense response of the human body against pathogenic bacteria, and its purpose is to improve the body’s immunity and inhibit the ability of pathogens to move and reproduce so that they can be cleaned out of the body. Eczema in children is a kind of allergic skin disease, which is usually called allergic skin disease, mainly caused by eating some food, inhaling dust, dust mites or contact with intolerant allergens. Children with eczema initially have a red skin rash, followed by foci and flaking of the skin, and touching the child’s skin is like touching sandpaper. Therefore, fever does not cause eczema, but fever may aggravate the manifestation of eczema.