how to cure balanitis ?

I am suffering since 6 months. At very first day i saw 2 egg shaped red spots on tip of my penis.
Then they went away without doing anything. After that red spots gone the tip is red since then
Now small red marks are there. How to get rid of these. I haven’t had any pain or any itching. I
Tried candid suspension and other ointment but still it is red. How to remove this problem. Please help.