Suggest Remedy For Soreness In Penis Foreskin

Hi when i pull my foreskin back its red and sore to touch if i dont wash it it gets bad discharge it hurts when i masturbate or have sex and it has been going on for a few days now could you answer my question plz i am 20 years old i am 5.5foot and i weigh 8stone i have had asma all my life but nothing else