The main points to consider for left-sided rib pain are as follows: 1. osteochondritis or intercostal neuritis, which is a relatively common disease, easily produced after cold or local injury, manifested as local dull pain, more obvious at night when sleeping, you can apply heat and take meloxicam to recover slowly. 2. herpes zoster, mainly caused by viral skin infection, manifested as skin blisters, redness and swelling, pain is more intense, requiring antiviral treatment to recover. 3. The main reason for this is that it is a lung disease caused by infection, and when the pleura is involved, there is pain in the pleura, and it feels like there is pain in the ribs, which requires anti-inflammatory treatment to recover. 4, chronic gastritis gastric ulcer, upper abdominal disease is also prone to chest pain, accompanied by acid reflux, indigestion, can do a gastroscopy to clarify the treatment can take omeprazole.