I once experienced rectal mucus discharge. That's terrible! About 4 months ago, I found clots of blood in my stool and there were mucus mixed. I had no choice but to see a doctor. I was diagnosed with colitis. Vomiting, diarrhea,reflux... all of these symptoms last for about one weeks. I took asacol (2 pill 3x per day) and I think this medication works well for me. I know medition cannot cure colitis, so I go on a special diet to avoid drinking milk, eating seafood some kinds of fruits.