My 5year old neutered cat was diagnosed with a bacterial infection in his bladder. The vet sent him home with liquid Metacam. We finished his course of antibiotics but the smell still lingers and he still looks like he's straining to pee. Vet said he has very concentrated urine. So I've started including wet food in his diet and hes getting quite a bit of water so not sure what else to do....should i try a follow up with the vet or are there any other suggestions of what else i can do to help him out?