proctologist doctor inserting rectal suppository into artificial model of human rectum closeup

anal antibiotic anus artificial candle capsule care colon coloproctology colorectal constipation cracks diclofenac disease disorder doctor drug erosions fever finger formula glycerin health hemorrhoid human illness inflammation inserting intestine into medic medical medication medicine model pain pharmacology pharmacy physician pill polyps prescription proctologist proctology rectal rectum science suppository symptoms treatment