I have an inhaler now. What next?

So, I've had this horrible horrible cough for months now. Finally I made it to the Vet to get it checked out. They poked me and prodded me and stuck a needle in my neck to take some blood. To make matters worse, they stretched me out and zapped me and took some pictures of my insides. They still don't know what to make of it and so they sent me off to the animal hospital. The Dr. there wanted to do some sort of "bronchial wash" luckily my person stood up for me and I walked (rode)out with just a prescription. Now I have a Nebulair Feline Mask and 2 inhalers! Twice a day for two weeks I have to have a puff of each.