1) Cordyceps sinensis for children is not suitable for all ages as advertised. Because of its androgenic effect, it may lead to precocity for children, so children should not take it. 2) The so-called "excess syndrome" of people with all kinds of excess syndrome is mainly due to a series of pathological changes caused by the excess of pathogenic factors, the failure of healthy qi and the fierce struggle between pathogenic factors and healthy qi. More common in the early and middle stages of exogenous diseases; At present, it is generally believed that high fever, mania, loud voice and rough breath, abdominal pain, constipation, strong pulse, etc. are all clinical manifestations of "excess of pathogenic qi leads to excess". People with asthenia can not only achieve the purpose of treatment and health care after eating Cordyceps, but also lead to upset, nausea, bloody mouth and other adverse reactions. 3) Patients with yin deficiency and hyperactivity of fire should not be used alone, so as not to aggravate the condition.