How is the old man disgusting and unable to eat?

Old people nausea can not eat, can be caused by a variety of reasons, first of all, due to recent improper diet, often eat strong irritant food or by pathogenic microorganism infection, induced acute gastroenteritis; Secondly, may be due to the elderly body immunity is relatively low, careless infection virus, induced cold fever, sick patients will become weak during the body, but also nausea can not eat symptoms. At this time, medical examination is needed, and then treatment according to the cause, such as cold and fever, can use anti-cold drugs, antipyretic drugs and other treatment.