Erythromycin ointment can be applied to children’s inflamed genitals, but it is not always effective. If there is no significant improvement after 3 to 7 days of use, please consult a doctor and change the medication. It is recommended to identify the cause of the disease and treat the cause. Erythromycin ointment has antibacterial activity against most gram-positive bacteria, some gram-negative bacteria, as well as mycoplasma and chlamydia. This product is used for purulent skin diseases, small burns, common acne, and infections of ulcerated surfaces. Adverse reactions to this product include local irritation symptoms and allergic reactions, and it is contraindicated for those who are allergic to this product. There are many causes of genital inflammation in children, including bacterial infection, fungal infection, parasitic infection, etc., which need to be treated for the cause. Erythromycin ointment is only suitable for some genital inflammation caused by bacterial infection. It is recommended to visit the hospital first to find out the cause of the disease and then choose the appropriate medication to avoid delaying the condition.