For left-sided chest pain on inspiration, consider intercostal neuritis or pleurisy. Routine left chest X-ray and lung CT are recommended. If there is pleural inflammation, antibiotic drugs should be used, such as antibiotics injected into the pleural cavity for anti-inflammation and pain relief. For tuberculosis-induced tuberculous pleurisy, anti-tuberculosis drugs should also be used. If no abnormality is found in the examination, intercostal neuritis is considered to be caused by over exertion and poor rest, and drugs that nourish the vegetative nerves, such as ghrelin and methylcobalamin, can be used appropriately. During the treatment period, we should pay more attention to rest, strictly quit smoking, chest pain is more obvious can be used externally Yunnan Baiyao spray pain relief.