Balanitis
Balanitis, or balanoposthitis, is inflammation of the head of the penis. The foreskin (the loose flap of skin that covers the head of the penis) is also often affected.
Your GP should be able to diagnose balanitis by examining your penis.
Treatments for balanitis include corticosteroid creams for skin irritation, fungal creams for fungal infections, and antibiotics for bacterial infections.
You can usually reduce your chances of developing balanitis if you avoid potential irritants and infections, and keep your penis clean.