Red rashes on the face of small children may be caused by eczema, milia and other diseases, the patient should consult a doctor in a timely manner to clarify the cause of the disease and then carry out the appropriate treatment. 1. Eczema: a small child with a red rash on the face may be caused by eczema, mostly symmetrical distribution, there will be itchy and polymorphic rash, may be allergies, heredity and other factors. 2. Corn rash: that is, prickly heat, if the little baby face red rash occurred in the summer, may also be summer high humidity and high temperature environment caused by corn rash, and sweat discharge is blocked. It can be manifested as multiple red papules and papules on the face. Red rashes on the face of small children may also be other diseases, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor for appropriate treatment.