Two-month-old babies have a bit of a cough for the following reasons: First, because of breastfeeding or artificial feeding, parents do not feed their children the right amount of water after drinking milk, resulting in milk residue in the throat, which can stimulate the coughing symptoms in children. Second, because of the dry indoor environment in autumn and winter, it can also lead to less moisture in the respiratory tract, causing coughing symptoms in babies. Third, the change of seasons, the baby getting cold or the parents having a cold can lead to the child being infected, etc., and the child may develop coughing symptoms. Fourth, due to factors such as hot and cold indoor air stimulation or allergic dust and allergic gases, the child may have an allergic reaction and may also develop coughing symptoms. V. If a two-month-old baby chokes while drinking or eating, he or she may also develop a cough.