WIhat a big pain when you have to get up and do your teaching job. The thing with the lungs is they take a while to recover if irritated like they were when you had bronchitis, you can have productive cough left over for up to two months! So annoying. You can go ahead and take the Z pack but am not really sure why they gave that to you unless they are worried about mycoplasma which is what causes walking pneumonia. I'd continue the Claritin and go ahead with the z pack. Do you still use the inhaler?