The best thing you can do is know that it will be over soon, and ride it out. Watch TV or do something that passes the time, and use distractions as best you can.
Okay, for staying away from gluten: There's a couple things you should take a look at. You didn't give a lot of detail, so I apologize if I go over ground you already have. =)
First, make sure the products -- not just the food -- you are using are gluten free. Shampoos, soaps, lotions, make-up, even dishwash detergent. Your pans and toaster and breadboards are all replaced, right? Colanders, non-stick pans, things like that, should have been replaced right away -- not everyone needs to, but I tend to be super-sensitive, so I had to.
Then look at every aspect of your day. What about your chapstick? Lipstick? Are you prone to putting your fingers in or around your mouth, or chewing on pens? (if you are, stop that! I did both, and would get sick a lot more than I do-- er, did until recently.)
Do you have an SO? If so, is your So gluten free too? My husband had to go gluten-free because not only was he starting to show rash symptoms with gluten, but he'd cheat, then touch me or kiss me, and I'd get sick! If your family or SO is not gluten free and they get their gluteny fingers on you or your stuff, you could get sick if your fingers or those items go by your mouth.
I hope this helps at all!!