Carisoprodol, Etodolac, and Cefuroxime
Carisoprodol is a muscle relaxant and also has pain-relieving properties. It shouldn't hurt you.
Etodolac in an NSAID, which we generally are advised not to take because they can cause GI bleeding.
Cefuroxime, of course, is an antibiotic. It does cause diarrhea and cramping in some people.
I'd suggest running these by your GI doc, taking Tylenol in place of the NSAID to see if that will give you adequate pain relief. If you're on a probiotic, consider doubling your dose while on the antibiotics, or if you're not currently taking one, consider starting one at high dose. This can help prevent flaring sometimes. Always take the probiotic at least four hours after your antibiotic dose.