Red spots on the glans can be treated with erythromycin ointment if they are caused by bacterial infection. However, if it is caused by fungus, virus, allergy, etc., the use of erythromycin ointment has no obvious effect.
There are many causes of red spots on the glans, the more common is caused by bacterial infection, in this case you can use erythromycin ointment for treatment. While if it is caused by virus, fungus, mold, trichomonas and other disease-causing microbial infections, the use of erythromycin ointment is not recommended. There are even some patients who have small red dots due to allergies and the use of erythromycin ointment is not effective.
Overall, if you find a red spot on the glans should be taken seriously, go to the hospital in time to check, clear the cause of the disease after targeted treatment, the drug should be applied under the guidance of the doctor, do not blindly use erythromycin ointment.