Erythromycin ointment can be used to treat eczema. Erythromycin ointment is a macrolide antimicrobial, which is useful for killing bacteria and other pathogenic microorganisms, and is mainly used to treat eczema with combined bacterial infections. This kind of eczema may have obvious vesicles, oozing, localized pus overflow or pus crusts, and topical application of erythromycin ointment can play a certain anti-inflammatory role. You can also apply topical fusidic acid cream or compound polymyxin B ointment, which is more effective than erythromycin ointment. For eczema without combined bacterial infection, erythromycin ointment topical application is not useful, you can apply allergy anti-inflammatory drugs, such as mometasone furoate cream, dinaide cream, etc.