Coughing in a 6-month-old child may be caused by allergy, bacterial infection or viral infection, etc. You can keep away from allergens, use cefaclor to fight infection, drink plenty of fluids, and keep indoor air circulating. 1. Allergy: A 6-month-old child with coughing symptoms may be allergic to a certain substance. The solution is to find out the allergen and try to stay away from it. 2. Bacterial infections: A 6-month-old’s cough can also be a bacterial infection, and in addition to coughing, the child may also have a fever. Parents should let the child drink plenty of water, if necessary, can apply cefaclor for anti-infection treatment. 3. Viral infections: Coughing in a 6-month-old can also be caused by viral infections. However, viral infections generally do not need to use antiviral drugs, you can ensure that the indoor air circulation, try to let the child drink more water, to promote the body’s metabolism. If a 6-month-old child develops a cough that is not relieved by active lifestyle modification or is accompanied by other symptoms, it is recommended that the child be seen by a doctor promptly. All of the above medications should be used under the guidance of a doctor, avoid self-medication.