Seborrheic dermatitis, also known as seborrheic eczema, is a chronic papular scaly superficial inflammatory skin disease that occurs in areas where sebum is secreted. It can be accompanied by varying degrees of itchiness and commonly occurs on the scalp, face, chest, back, and other areas rich in sebaceous glands. The general principle for topical treatment of seborrheic dermatitis involves degreasing, anti-inflammatory, antibacterial, and anti-itching measures. Commonly used topical medications include combined formulations containing corticosteroids and antifungals such as compound ketoconazole and compound econazole. When these are not effective, calcineurin inhibitors such as tacrolimus or pimecrolimus can be used. In cases with exudation and erosion, products like zinc oxide ointment, boric acid zinc oxide menthol cream, and erythromycin eye ointment may be selected.