Seborrheic eczema, also known as seborrheic dermatitis, is a chronic eczema with varying degrees of pruritus that occurs on seborrheic areas such as the head, chest and back, and can occur in both newborns and adults. The pathogenesis of the disease is unknown, but is currently thought to be related to Malassezia colonization, skin barrier dysfunction, increased lipids, and individual differences. It often presents as erythematous, greasy scales. For exudate and vesicles, a wet compress of 3% Levanox solution can be used for anti-inflammatory and astringent bactericidal purposes, and topical Denide cream or hydrocortisone butyrate cream can be applied twice daily. Use antihistamines (such as imipramine tablets, desloratadine tablets, etc., and for children over 6 months old, cetirizine drops) as appropriate. If topical medication is not effective, it can be replaced with 0.1% tacrolimus ointment once daily, avoiding sunlight and avoiding UV light after topical application. At the same time, pay attention to repairing the skin barrier, and use topical medical skin care products such as Skin Care, Winona, Stave, etc., without soap and shower gel and other cleaning products. Ensure that you get enough sleep, relax, avoid excessive stress and strain, take appropriate B vitamins, and avoid excessive fat intake, such as fatty meat, chocolate, cakes, etc., and do not drink alcohol or eat spicy and stimulating food.