Erythromycin ointment will not have a significant therapeutic effect if eczema occurs on the vulva. The main components of erythromycin ointment are Vaseline and erythromycin, which is an antibiotic substance, and its main components not only do not play any therapeutic role for eczema, but may cause secondary infection due to long-term use of antibiotics, and the Vaseline base inside the ointment does not necessarily work for eczema. If the patient’s eczema forms visible vesicles, or forms visible papules, papules, etc., it may cause the phenomenon of vesicles and exudative reactions to worsen. Eczema in the vulva area is mainly a matter of applying topical anti-inflammatory creams, such as tacrolimus cream, which can be applied topically.