Suggest Medication For Red Spots With Inflammations On Penis

I'm (40 yrs) married for 12 years & have a child of 9 years. Last year, I found my foreskin had not been retracted. That was a painful feelings due to heavy inflammations. Some red spots were there on top of Penis. After 5/6 days, everything was over and vanished. Few days ago, same thing appeared again. On consulting Net, I apprehend - it's Balanitis. Is there any Ointment or something like that which I can buy?