Colds are common in children and are often accompanied by fever. However, some infectious diseases may also show symptoms of colds in their early stages, which requires parents to closely observe the condition and detect the symptoms and manifestations of certain acute infectious diseases or other infectious diseases early. When a child has a cold and fever, accompanied by cough and runny nose, which are respiratory symptoms. First of all, antipyretic measures should be carried out. If the child’s body temperature drops to normal and his or her spirit improves, and he or she can also eat something, parents can be assured that this fever is caused by a cold. However, when a child has a fever due to an infectious or contagious disease, it is important to keep an eye on it. So what should parents pay attention to observe for their feverish children? The main aspects are as follows: 1. look at the front chest and back every morning and evening to see if there is a rash; 2. see if there are purple spots on the buttocks, and if there is redness, swelling and pain around the anus of the child; 3. see if there is swelling at the root of the thighs and underarms, and if the movement of the arms and legs is limited by pain; 4. see if there is running water and pus in the ears; 5. see if there is vomiting, abdominal pain and pus and blood in the stool; 6. see if the face is dull or pale, and if the eyes are 7. Is there any blood from the gums, nose bleeding, etc.? These are the early symptoms of measles, chickenpox, scarlet fever, paranal abscess, inguinal abscess, axillary abscess, otitis media, peritonitis and blood disorders, etc. If you observe any of these symptoms, you should go to the hospital immediately. Although there is no special medicine for children with cold and fever, there is a natural process, some 3-5 days, some 7-10 days. During this period of time, as long as the proper treatment and care, will successfully pass the disease. Of course, when the temperature is normal, it does not mean that nothing is wrong, because some diseases, such as myocarditis and nephritis, develop only 2-4 weeks after the cold, so parents of children suffering from the cold should be patient and careful observation from the beginning to the end to prevent other diseases.