How Can Penis Foreskin Tightness, Cuts And Pain After Intercourse Be Treated?

When I have sex with my wife the skin on my penis stretches taught and as a result thin horizontal cuts occur. When I ejaculate I feel a searing pain perhaps because of the alkalinity of the semen going in to the cuts. This has been going on now for years and it's reduced our sex life to the point of two or three times a year.