The child coughed and the weather was cold.

According to what you said, if the baby has cough symptoms after contact with cold stimulation, it is still likely to be caused by allergic bronchitis.

Suggestion:

With the increase of age, the above symptoms are not excluded, but the disease is generally related to one's own physique, so try to avoid feeling cold and cold stimulation in life, and go to the hospital in time, and use promethazine hydrochloride and dextromethorphan syrup to treat acute attacks according to the doctor's advice. In remission stage, drugs such as Hezhi oral liquid can be used to prevent seizures.