I Take 10 Mg Percocert 4 Times Per Day. Also

I take 10 mg percocert 4 times per day. Also in 4th stage of copd, wheel chair and bed bound. On full time oxygen set a number 6. I had exacperated copd and my doctor put me on levofloxacin, for the enfection, prednisone for my lungs, and fluconazole for the oral thrush I always get with steroids. Been having sever diarrhea since I started first dose of lung medicine. Allergic to many antibiotics. I also have a colostomy. Goin thru many colostomy bags. Very tired need advice on stopping or slowing down the diarrhea.