Ulcerative colitis (UC) is a condition where patches of inflammation develop in your large intestine. The most common symptoms when the disease flares up are diarrhoea mixed with blood, and tummy (abdominal) pain. In between these flare-ups you may have few or no symptoms. If the patches are confined to the lower parts of your bowel (the colon and rectum), it may be helpful during flare-ups for you to be treated with a rectal preparation. This means giving budesonide into your back passage as an enema which you retain for a short time, or administering it as a foam.
This is a companion discussion topic for the original article at https://patient.info/medicine/budesonide-rectal-foam-and-enema-budenofalk-rectal-foam-entocort-enema