I will definitely ask the vet about adding probiotics into his diet!
I brought him back to the vet today because his meds are finished and he's still coughing, they are keeping him over night and nebulizing him....I have called a couple times checking on him already and he's only been there since 1:00, idk who has worse separation anxiety me or him?! They said they haven't hear him cough yet, of course, but he has just been sleeping in his bed, I told her that he needs to walk around or something so he will cough so they can at least hear it....I'm keeping my fingers crossed that he is better tomorrow do he can come back home! I miss him already!!