<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am having a sharp pain in my upper right rib just under my breast. It came on out of the blue and has lasted 3 days now. I was sick for 4 weeks with a mild cough. Nothing too severe and I did not receive a blow to my chest. It hurts to take deep breaths, sneeze, cough and roll over in bed. What could this be?  <response>: Thanks for your question on Chat Doctor. I can understand your concern. Your pain is most likely due to pleurisy inflammation of pleura. Since you had cough which was lasted for 4 weeks, we should definitely rule lower respiratory tract infection LETI because this is common after common cold and can cause pleurisy. So get done chest x-ray. You will need antibiotic, anti-inflammatory and anti histamine Chat Doctor. If chest x-ray is normal then no need to worry about lung infection. Musculoskeletal pain can also cause similar symptoms. So take painkiller and muscle relaxant 