Wow, they're not giving you anything? That's crap! (Pun intended.) I have ulcerative colitis (very similar to Crohn's), and I know how useless OTC meds are.

I would call back and ask if they'll give you mesalamine enemas or suppositories. They aren't too risky in terms of side effects, so maybe your doc would be willing to prescribe that while you're waiting for the scope. Those help me a lot when I get rectal ulcers. They probably won't help with the rest of the pain--they don't for me, anyway, as my entire colon is affected. But some relief might still help.

For the abdominal pain and cramping, I've found some relief with a heating pad. It doesn't cure the pain, but it makes it a little more tolerable. But really, they need to be treating the underlying inflammation--it sounds like more than just proctitis to me; probably your descending and possibly transverse are affected too, if you're having left-sided and mid-abdominal pain. (But I'm not a doctor.)

For nausea, there are prescription meds, if your doc will prescribe them. What's worked best for me is Zofran. But peppermint and ginger (oils, teas, even candies) help in a pinch, too. Again, they don't cure it, but they might help tide you over until you can get real treatment.

I'm sorry you're suffering so much. I hope you get some answers and relief soon! And if you ever want another IBD'er to talk to, you can PM me. I'm happy to talk/listen.