Treatment principles: The common cold is self-limiting, and no medication is needed for mild symptoms, while medication is needed for symptoms that significantly affect daily life, mainly for symptomatic treatment, rest, proper hydration, light diet, and nasal, pharyngeal and oral hygiene. Oral route is preferred for drug treatment, avoiding blind intravenous rehydration. Intravenous rehydration is used in the following cases: 1, the child’s original basic disease aggravated by the cold, or the emergence of complications and the need for intravenous drug administration. 2.Severe diarrhea or hyperthermia leading to dehydration and electrolyte disorders in children. 3.People who eat little because of gastrointestinal discomfort and vomiting. In the face of the common cold, many parents like to give their children medication at home, usually common mistakes are: 1, not according to the ingredients in the compound cold medicine selection of drugs. Such as giving children without fever using compound cold preparations containing antipyretic ingredients (common aminophenanthramine for children with fever-free colds). 2, repeat medication: taking more than two kinds of cold medicine at the same time. Because many of the components of the compound cold medicine is more or less the same, combined easily lead to the same component overuse and adverse reactions. 3, blind medication: a slight cold symptoms that medication, that early medication can block the disease process. In fact, the common cold generally takes about 7 days to heal itself, usually cold medicine only play a role in reducing the symptoms, no significant help to shorten the course of the disease. 4, the child appears runny, sneezing symptoms that use cold medicine. Some of the children in the clinic appear runny, sneezing symptoms are really because of the cold, but there are also some children are allergic rhinitis attack caused. If it is allergic rhinitis use compound cold medicine, because cold medicine often contains antihistamine ingredients, the child’s rhinitis symptoms can also be partially relieved, but other ingredients for allergic rhinitis children is redundant. And the antihistamines in cold medicine are 1st generation, while the treatment of rhinitis requires the use of 2nd generation antihistamines. So it is inappropriate to use cold medicine to treat allergic rhinitis. 5, do not identify the evidence arbitrary selection of proprietary Chinese medicine: such as the use of cold children with Qingkailing granules, blue scutellaria oral liquid and other heat-clearing proprietary Chinese medicine. The use of proprietary Chinese medicine should be based on the correct identification of evidence, and the unreasonable use of medicine without identifying heat and cold sometimes aggravates the child’s condition. 6, arbitrary infusion, the child fever for a little longer, that is, ask the doctor for the child infusion, worried about fever burned body. Some doctors add glucocorticoids to the infusion formulas to reduce parents’ anxiety and use them to quickly reduce fever. In fact, glucocorticoids suppress the body’s inflammatory response and weaken the child’s ability to use his or her own immunity to fight off pathogens, sometimes causing the infection to spread further. Therefore, pediatricians are against the use of glucocorticosteroids to reduce fever in children with common cold.