Six-month-old babies with a very severe cough may be caused by upper respiratory tract infection, allergic cough, bronchiectasis, etc. The condition can be improved by general treatment, medication and physiotherapy. 1. Upper respiratory tract infection: If it is caused by virus, no special medication is needed. If it is combined with bacterial infection, antibacterial drugs such as cefixime and amoxicillin should be used according to the doctor’s instructions. Cough is the body’s normal way of expelling germs, it is not recommended to give the child cough suppressants, you can take daily hot pear soup or nebulizer treatment to relieve throat discomfort. 2. Allergic cough: patients should avoid contact with allergic substances, such as pollen, dust, etc., to maintain indoor air circulation. Generally the symptoms can be improved after staying away from allergens. 3. Bronchiectasis: Patients can take antibiotics, such as cefixime, amoxicillin, etc. as prescribed by the doctor. Can also be nebulized to improve the condition. It is recommended to strictly follow the doctor’s instructions, do not change the dose of drugs or private abuse of drugs, pay attention to monitoring the condition in life, once the condition worsens should be timely medical treatment. Six-month-old babies have a very serious cough may also have other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.