I feel some pain in my pennie for some days, today whn i remove my cover slowly i hve found a bad smell fm it?

i feel some pain in my pennie for some days. today when i remove my foreskin i found a bad smell from it . so i wash it and also used savolne anti septic lotion.......but after washed with savlone it's increase my pain. and my foreskin became red and paining too much .....what i have to do now....plz help me ..