What should I do if there are small bumps on the head of my penis?

Patient's question:

Age
Detailed medical condition and consultation purpose: I have small bumps on my glans penis with itching. I had unprotected sex 3 months ago. The doctor recommended tests for mycoplasma and chlamydia, but the results were normal. Please ask the expert what disease I might have and how to treat it?
Medical history: 3 months

Doctor's answer:

Red spots on the glans are a typical symptom of balanoposthitis, which refers to inflammation of the inner foreskin and glans. A lipoidal substance normally secreted in the normal foreskin cavity can accumulate as smegma under conditions of phimosis or excessive foreskin, irritating the foreskin and glans to cause balanoposthitis. First, it is necessary to seek professional medical diagnosis, followed by symptomatic treatment. Balanoposthitis is generally treated both internally and externally. For acute superficial balanoposthitis and annular erosive balanoposthitis, erythromycin and tetracycline are the first-line treatments. For trichomoniasis-induced balanoposthitis, metronidazole is the preferred treatment. For candidal balanoposthitis caused by Candida, griseofulvin or itraconazole is commonly used.