The choice of medication should be based on the cause. If the left abdominal pain is due to inflammation, antibacterial drugs such as penicillin, cephalosporin, ofloxacin and ciprofloxacin are the main choices for treatment; if it is a stomach disorder, drugs to protect the gastric mucosa and drugs to inhibit stomach acid can be applied to help relieve the pain. However, the use of medication needs to be done strictly on medical advice and should not be self-administered.