The difference between pediatric eczema and heat rash lies in the different causes, symptoms, and treatments. 1. Causes: Pediatric eczema is mainly related to allergies, while pediatric heat rash is mainly due to the inappropriate temperature of the environment in which it is located, such as hot weather, wearing more clothes and so on. 2. Symptoms: Pediatric eczema is usually a patchy red rash with papules, pimples, ulcers in some areas and intense itching, while pediatric fever is a scattered red rash all over the body. 3. Treatment: pediatric eczema should look for allergens, avoid allergens, external moisturizing cream, severe cases can use hormone ointment, such as dinexed cream, etc., and heat rash is mainly to adjust the temperature of the environment. Children with the above symptoms, it is recommended to consult a doctor in order to clarify the cause of the disease and follow the doctor’s instructions for medication.