Abdominal pain after eating expired food can be treated by general treatment, medication and other methods. 1. General treatment: after eating expired food mild abdominal pain can drink more hot water to promote metabolism, promote the discharge of toxic substances, can be hot compresses, relieve the digestive tract spasm, reduce pain. 2. medication: severe abdominal pain after eating expired food if there are symptoms of infection can use some anti-infective drugs such as levofloxacin, norfloxacin, etc., gastrointestinal mucosal protectants such as aluminum sulfate, bismuth pectin, etc., to relieve gastrointestinal spasms such as scopolamine, atropine, etc., as well as a number of intestinal probiotic bacteria, which can regulate the intestinal flora, and promote the restoration of gastrointestinal function. Misuse of expired food after abdominal pain need to promptly seek medical attention, improve the relevant examination, cooperate with the doctor active treatment, do not arbitrarily use drugs, so as not to delay the condition.