If a child has fever, hoarse throat with cough, it is often a symptom of upper respiratory tract infection. If these symptoms appear, it is important to improve the relevant tests, such as chest X-ray, blood tests, etc. If the routine blood results indicate normal blood or high lymphocytes, antiviral drugs can be used to control the fever, such as oseltamivir, and ibuprofen suspension should be used to reduce the fever when the body temperature exceeds 38.5°C. If the cough is very severe, it can also be controlled with cough suppressants, such as pulmonary cough, and the general condition of the child should be observed.