If a cough persists, it is important to identify the cause and treat the cause. It is recommended to take the child to the hospital for lung X-ray and blood tests to determine the cause of the cough. If the child has thickened lung texture and elevated white blood cells, the cough is due to bronchitis caused by bacterial infection and can be treated with antibiotics, such as amoxicillin granules or azithromycin granules. If the child’s cough is due to allergic factors, it needs to be treated with anti-allergy medications such as loratadine. If the cough is more pronounced at night, nebulization with budesonide can be done to relieve the symptoms. It is also important to identify the allergens causing the child’s allergic cough and to stay away from them.