Try not to apply pain medication first for left side abdominal pain, because some acute abdominal diseases occur, if purely applied pain medication for pain relief is easy to cover up the condition, although the symptoms of abdominal pain are reduced, but for more serious perforation, or even septic type of abdominal diseases, the condition may be aggravated due to pain medication to cover up the symptoms, peritonitis, infectious shock, or even serious delayed and life-threatening. Pain in the left side of the stomach can be relieved by applying hot compresses or microwave physiotherapy and applying antispasmodic drugs such as atropine and belladonna tablets. If the symptoms are relieved, you can continue to observe. If the relief is not obvious and there is gradual aggravation, you should go to the hospital in time to find out the cause in detail and carry out systematic and standardized treatment according to the cause.