”Cold” is not strictly a disease name, it includes one or several symptoms such as fever, sore throat, nasal congestion, runny nose, sneezing, coughing, coughing, dizziness, headache and even nausea, vomiting and diarrhea. Most people have the experience that a cold is a minor illness that will get better in a few days on its own and does not require any medicine. But in fact, there are light and heavy colds, and this light and heavy is not necessarily consistent with the performance of the symptoms, the seemingly light cold may be hiding a crisis, serious colds often appear meningitis, myocarditis, severe pneumonia and other complications, and the rate of death and disability is extremely high, it is easy to cause medical disputes, is this small disease, every year has taken some lives. On April 12, 2012, a doctoral student from Sun Yat-sen University died suddenly during infusion treatment for “cold”, and on May 20, 2012, a female patient died suddenly after infusion treatment for “cold” in Liwan District Chinese Hospital. Search for those black clinics to treat cold deaths every year, these cases in addition to a few drug allergic shock death, most of the above-mentioned serious cold complications lead to sudden death, the patient’s condition from deterioration to death progresses rapidly, unprepared, often manifested as sudden death. Cold is not always a minor disease, the patient should have some awareness, doctors should be vigilant, the necessary tests are necessary, the treatment of the cold to do tests does not necessarily mean indiscriminate examination.