Baby eczema and prickly heat can be recognized by their pathogenesis and location. 1. Pathogenesis: baby eczema is mostly an allergic skin disease triggered by skin contact with allergens. Baby prickly heat is due to the hot and stuffy environment, or the baby wears too thick or breathable clothes, so that a large amount of sweat is not easy to evaporate, resulting in sweat ducts become narrow or blocked. 2. Prevalent parts: baby eczema occurs on both sides of the baby’s cheeks, forehead and other areas. Baby prickly heat occurs in the trunk, armpits, neck and other parts. Baby eczema and prickly heat, clinical symptoms are very similar, if the patient can not be identified, it is recommended to go to the hospital in a timely manner, by a professional doctor according to the characteristics of the history and examination results to clarify the cause of the disease, and then give targeted treatment.