Flu left me with inlammed lungs. after i took azythromicin 500mg for 5 days my cough has almost gone and i have had no fever. but i have a pain near or below left rib which apperars when i cough, move in a position or get tired. whai is this, pls?

Persistent pain: Your pain is strongly suggesting a musculoskeletal origin, such as muscular/ intercostal strain, somewhat typical following pneumonia, pain may last up to 6-8 weeks and is superficial. Other possibilities, such as a pleural effusion, also common after lung infections, cannot be ruled out and usually a follow up X-ray is done few weeks after acute episode in order to assess for clearance.