Treatment for ulcerative colitis can include medicine, changes in your diet, or surgery. These treatments won't cure it (unless you have surgery that removes the colon and rectum, which is considered curative), but they can ease your symptoms.
It's important to get treated for ulcerative colitis as soon as you start having symptoms. If you have severe diarrhea and bleeding, you might need to go the hospital to avoid or treat dehydration, soothe your symptoms, and make sure you're getting the right nutrition.