The application of erythromycin to glans has little effect, which may be related to improper use of medication, the condition is too serious and improper care, etc. It is recommended to go to the urology department of the hospital, and choose the most suitable medication according to the results of the examination. 1. improper use of drugs: glans may be due to Candida albicans, anaerobic bacteria infection caused by the causative organisms are different, the need to choose the antibiotic will be different, erythromycin is therefore not ideal. 2. The condition is too serious: if the glans is mild, applying erythromycin will have obvious effect, but if the condition is more serious, local treatment can not control the condition, but also need to apply antibiotics systemically, such as levofloxacin, amoxicillin clavulanic acid potassium and so on. 3. Improper care: not paying attention to hygiene in daily life is the main cause of glans, but also an important factor affecting the recovery of glans. If you have a glans, you should go to the hospital for examination and follow the doctor’s instructions for medication.