Pediatric eczema is a common childhood skin disease caused by a variety of causes, such as redness, macular rash, maculopapular rash and other lesions in various forms, such as with oozing and itching. Pediatric eczema is divided into three types: acute, subacute and chronic. Acute eczema is often manifested as a polymorphic rash pinpoint to corn-sized papules, papules blistering in severe cases, often fused into patches, with unclear boundaries. Sub-acute eczema is the lesions after an acute eczema attack, manifesting as reduced redness and exudation, a small amount of papular papules on the basis of herpes with scales. Chronic eczema is the result of acute and subacute migrations, manifested as erythema with papules, scratches and scales, local skin hypertrophy, surface roughness, with varying degrees of hyperpigmentation, hypopigmentation, etc. The main cause of pediatric eczema is allergy, which may be caused by allergy to dairy products, intimate clothing, diapers and so on. The main treatment is to avoid re-exposure to allergens, followed by a clear typing of eczema and the selection of different drugs and dosage forms for different periods. Depending on the situation, glucocorticoids are used to control the condition, oral antihistamines are used to stop itching, and topical glucocorticoids are used in combination with antibiotics to control the development of the lesions. There are many causes of eczema, and allergens are difficult to detect, causing the body to remain in an allergic state and thus the lesions to persist. In conclusion, the treatment of eczema should be based on the diagnosis of the dermatologist, with the examination to find allergens, and obey the medical advice to actively treat.