How long do the lungs take to heal?

A chest x-ray taken a week ago showed that I have a "strip" of pneumonia in my right lung (only a portion is infected, not the entire lung), and my left lung is normal. I also had acute bronchitis. I've been sick for 2 weeks now. I use a Qvar inhaler, and a nebulizer when needed. My right lung still makes a weird groaning/crackling sound when I breathe. Should I go back to the doctor? How long do viral pneumonia symptoms last? It's already been 2 weeks, and my lung is still making a weird noise.