The most common cause of painful sexual intercourse in men is an infection of the genitals, the prostate gland, or the urethra (the tube through which urine and semen pass out of the body). ... Friction on the penis during sexual intercourse can aggravate the pain of an infection. Also use mild cleanser like cetaphil or sebamed to cleanse your genitals during shower harsh soaps might cause allergies over a period of time. Please consult a good competent certified sexologist and get treated often an acute disorder turns chronic due to prolonging consultation with a doctor. Take care.

U should get a blood sugar test and urine microscopy done first ,only then some comments can be made.