Welcome to HCM.Cough
with expectoration or flem indicates that the lower respiratory tract
is infected. Chest xray is done to rule out if infection has spread to the the lungs. X ray
findings for pneumonia
is presence of infiltrate or consolidation. Your x ray finding says infiltrate found in left upper lobe. Your doctor is right for treating you for pneumonia. Please complete the course of antibiotics prescribed and take ample rest.
Wishing you a speedy recovery.