Did you know there is a condition that a lot of old dogs get called "Old Dog Cough"?
Poodles are especially susceptible. It's actually caused by a ring or two in the throat collapsing. It can be cured with an operation, but most dogs are too old for the operation. The best that can be done for them is a medication to keep them from feeling like something is stuck in their throat.
Bear has a pill called Tubutrol that he takes twice a day. Without it, he sounds like a 3-pack a day smoker. He will have to take this for the rest of his life.