Penis head and foreskin itching with small red spots, what medicine should be taken

Patient's question:

Male, healthy

Doctor's answer:

Balanoposthitis is generally caused by excessive foreskin, which easily breeds bacteria and leads to long-term irritation of the glans, resulting in balanoposthitis. It can be treated by soaking in a 1/5000 potassium permanganate solution and applying an anti-inflammatory ointment.
Hello, masturbation should not be done excessively, as it may lead to kidney deficiency or aseptic prostatitis. It is best to do it once a week, and you can also take Shou Gui Wan, a herbal medicine for tonifying the kidneys, for treatment.
A light diet is recommended, avoiding spicy and irritating foods. Drink plenty of water.