Cough in the morning, generally does not need treatment.

Cough in the morning has phlegm, which belongs to physiological cough and is a reflex defense function. The secretion of respiratory tract and foreign bodies in trachea can be cleared by coughing. Normal bronchial mucosal glands and goblet cells only secrete a small amount of mucus to protect moist respiratory mucosa. When respiratory tract inflammation occurs, mucous membrane congestion and edema, mucus secretion increase, capillary permeability increases, and serous exudation. Therefore, if it is only a temporary cough, it does not need to be treated.