Whether it is okay to use erythromycin ointment for red spots on the glans cannot be generalized and should be analyzed on a case-by-case basis. Situations such as glans inflammation may be able to use; allergies and other situations caused by not recommended. 1. can use erythromycin ointment situation: glans may be glansitis, erythromycin ointment is a macrolide class of topical antibiotic ointment, if it is sensitive to bacterial infection caused by inflammatory reactions, generally can use erythromycin ointment for treatment. 2. can not use erythromycin ointment situation: if itself is allergic to the body, or to determine the erythromycin ointment of this kind of drug allergy, the glans has red spots can not use erythromycin ointment. 3. should not use erythromycin ointment: erythromycin ointment is an antibiotic ointment, if the allergic factors caused by the glans red spots, or viral infection fungal infection and other diseases, the use of erythromycin ointment, can not play a direct role in the treatment. The red spots on the glans need to be examined in the hospital first to clarify the cause of the disease, and the drug should be used under the guidance of a professional doctor.