Seborrheic dermatitis is a common skin disease that can be seen in both adults and children. It is believed that seborrheic dermatitis mainly occurs on the head, face, chest and back, where the sebaceous glands are more densely distributed. When seborrheic dermatitis occurs, attention must be paid to controlling the diet, first of all, attention must be paid to supplementing fresh vegetables and fruits, as well as food with more salt and sugar must be paid attention to, while avoiding seafood foods, such as fish and shrimp. Secondly, when seborrheic dermatitis occurs, you can take oral medication, mainly when itching is more intense, you can apply antihistamines. If seborrheic dermatitis has a fungal infection, antifungal drugs can also be applied. In addition, antibiotics or glucocorticoids can be applied, and finally topical medications can be combined for seborrheic dermatitis, such as antifungal preparations as well as strong glucocorticoids.