For acute respiratory infections in three-year-old children, the following medications can be taken to relieve the situation: first, consider applying oseltamivir to children. If the child’s acute respiratory infection is mainly upper respiratory tract infection, there will be headache, high fever persistently, etc., this is the possibility of influenza A virus or influenza B virus caused by the child, you can give children to apply oseltamivir antiviral treatment. Secondly, children should be given proprietary Chinese medicines, which can be used to relieve phlegm and cough, clear heat and detoxify the body. If the acute respiratory tract infection in children is mainly cough and sputum, they can be treated with Jin Zhen Oral Liquid. Finally, children can be given timely application of phlegm-relieving drugs. If acute respiratory tract infection is characterized by cough and sputum, children can be treated with aminoglutethimide or aminobroxol oral solution in a timely manner, which can have a good effect on resolving phlegm.