you sound so depressed and i sympathize b/c i feel the same so often! i have contemplated suicide so many times in the past 2 1/2 years b/c nothing i do makes a difference and it's so out of my control i feel like ripping my hair out and screaming and crying. it is a miserable situation. so i KNOW HOW YOU FEEL and i know it's awful. but you cannot give up.
there are so many things to try and proctitis is pretty common and curable! have you even asked about or tried hydrocortisone suppositories? those are often prescribed for proctitis or any kind of anal irritation/inflammation. before you give up please try that at least. also, have you given up spicy/acidic foods and booze?? try extremely modifying your diet, have you considered macrobiotics or a gluten-free diet or some other kind of extreme? also, you should stop using toilet paper or wipes and instead use a bidet-type thing. i squirt clean with an enema bottle filled with warm water that way there's nothing externally irritating the anus. shower after every BM and then towel dry or use a hair dryer to minimize irritation.
have the drs really given you that hopeless of a prognosis? proctitis to me seems like a maintainable condition. have any drs suggested anything you can do to ease the pain and discomfort???
believe me, i can completely understand what you're going through, but you have to keep trying to find something to make it better. don't give up! you had a good day the other day, so try to analyze what you did that morning or the day before to make things tolerable.... i know it's annoying to have people try to cheer you up when you're depressed, but i honestly understand what you're going thru and i know you need to get yourself out of this dark hole.