Some parents see their children fever when they quickly use drugs to reduce the fever, this is often the opposite of what you want, the disease is not cured, and added complications. Therefore, the correct use of antipyretic drugs is very important. First of all, parents should understand that fever is not absolutely a bad thing. Fever is the body’s defense response to disease-causing factors. When fever is caused by local inflammation, the body’s metabolism is enhanced, and the ability of the white blood cells in the blood to resist and destroy pathogenic microorganisms is increased, which is sufficient to make the inflammation subside. Only when the fever persists and the temperature is too high, which seriously affects the physiological functions of the child, is it necessary to try to reduce the fever. Secondly, fever is a “symptom” rather than a “cause”, it is a manifestation of disease rather than a cause of disease. For example, common pneumonia is an inflammation caused by bacteria or viruses that multiply and grow in the lungs. Although antipyretic drugs can temporarily lower the body temperature, but can not kill, inhibit the pathogenic microorganisms, but also can not fundamentally cure the disease that causes fever, fever will continue to exist. In addition, the improper use of antipyretic drugs is harmful. Most of the commonly used antipyretic drugs are used to bring heat out of the body by sweating a lot, prompting the body temperature to drop. However, the child’s body is already weak, and improper use of medication can cause dehydration and aggravate the condition. These drugs have a stimulating effect on the digestive tract and can cause nausea, acid reflux, vomiting and other symptoms. Individual children are more sensitive and can have suppressed bone marrow hematopoiesis or kidney damage, and some can have allergic reactions. When infants and children have fever, it is important to find the cause and treat it at the root. The use of antipyretic drugs must be in accordance with medical advice, not arbitrarily increase the amount of drugs and the number of doses, to prevent the toxic side effects of drugs.