8 months baby cough during the day, not cough at night may be related to a variety of reasons, including upper respiratory tract infections, allergies, etc., according to the cause of the need for targeted treatment, such as anti-infective treatment, to avoid contact with allergens, etc.. 1. Upper respiratory tract infections: It is recommended to take the child to the hospital for routine blood tests to determine the type of pathogen, and select sensitive antibiotics for anti-infective treatment according to the type of pathogen. If it is a bacterial infection, you can use antibiotics such as cefixime; if it is a mycoplasma infection, you can take azithromycin, etc.; if it is a viral infection, generally supportive treatment can be. 2. Allergy: baby cough may also be related to allergies, daytime exposure to allergens caused by coughing, the night will not come into contact with no obvious symptoms, parents can take the child to the hospital for allergens, clear allergic substances, to avoid contact with allergens. 8 months baby cough during the day, not cough at night symptoms for a long time without relief, parents are advised to take the baby to the hospital in time to check the diagnosis, timely targeted treatment, so as not to miss the opportunity for treatment. All of the above drugs should be used under the guidance of a doctor.