Expired corkage should not be used, not only corkage, any drugs, food should not be used after the expiration date, not only can not play a therapeutic and nutritional role, but also may be because of the expiration of drugs, food inactivation, deterioration, thus increasing the burden of gastrointestinal, liver, kidney and other functions. Some elderly people often do not follow medical advice and use some expired drugs or health care products at will, and some patients may suffer from acute liver failure or acute kidney failure, which should be given high attention. In addition to the shelf life of drugs used daily, we should also pay attention to the way they are stored. Some drugs need to be stored in a cool environment, some drugs need to be refrigerated, if you do not pay attention to storage regulations, even within the shelf life of food and drugs, the quality will be affected, thus affecting the effect and delaying the treatment of disease.