What do you use to treat pneumonia in a dog?

Take your dog to a Licensed Vet ASAP!

i agree with ethel02 if you think you dog has pneumonia you need to get him to a vet ASAP

Two words: A Vet.

Pneumonia is very serious.

you check for it by xray and listening to breath sounds. This needs to be done by a professional. If you are asking how the Dr. treats it, ask them, not in here.

You get to your Vet ASAP, your dog could die, no over the counter or treating yourself .