Penis feels a bit itchy, red spots appear on the surface, what disease is it?

Patient's question:

Onset date: August 15, 2012, red spots appeared on the surface, a little itchy, and haven't gone to the hospital for a check-up yet.

Doctor's answer:

Hello, considering the possibility of balanitis, using potassium permanganate solution for sitz baths can be quite effective. Pay attention to keeping the area dry and clean, and avoid spicy and irritating foods.