Fever means fever, and repeated fever and cough in children may be caused by upper respiratory tract infection, pediatric pneumonia, tonsillitis and other diseases. 1. Upper respiratory tract infection: this disease is mainly caused by infection with pathogenic microorganisms such as parainfluenza virus, respiratory syncytial virus, hemolytic streptococcus, hemophilus influenzae and other pathogenic microorganisms, which can be induced by factors such as low immunity and exposure to cold and result in the child’s coughing, fever, nasal congestion, sneezing and other symptoms. 2. Pediatric Pneumonia: This disease can be caused by Mycoplasma pneumoniae, Chlamydia infection or mixed bacterial and viral infections. Common symptoms are wheezing, coughing, fever, etc., which can be manifested as repeated fever and cough in children. 3. Tonsillitis: the common causative organisms of this disease are staphylococcus, adenovirus, influenza virus, toxoplasma gondii, etc., followed by acute inflammation of neighboring organs spreading to the tonsils, and it can also be secondary to scarlet fever, measles and other diseases. The child will have chills, high fever, sore throat and other symptoms, accompanied by coughing, coughing up phlegm and other symptoms of upper respiratory tract infection. There are many causes of recurrent fever and cough in children, and it is necessary to go to the hospital in a timely manner to clarify the specific cause.