Hmm, his recommendation surprises. Azithromycin can affect kidney function and worsen kidney failure (my husband is Stage 3B and they will not prescribe it.) It can also have some effects on the heart, and anyone with heart issues should make sure their cardiologist knows they are taking it.
There are other safer ways to decrease mucus and inflammation, including Singulair, guaifenesin, N-acetyl Cysteine, albuterol/levalbuterol. Airway clearance with nebulized saline and a PEP device can also help.
Only you and your doctor can decide what is best for you, but remember sub-clinical doses of a broad-spectrum antibiotic can also make other bacteria such as staph, strep & e. coli resistant to common antibiotics.
Sue