The present invention relates to a cough treatment device, and in order to treat coughs, which are the main symptoms of a respiratory disease, provided is the cough treatment device having: a horizontal bar formed in a bar shape so as to press, while being bitten by the upper and lower teeth, the tip of the tongue such that the tongue enters the mouth, thereby expanding an airway; and wing parts for guiding air flowing into the mouth such that the air passes the surface of the mouth, thereby buffering air flowing into the airway and changing the temperature of the air and, simultaneously, allowing moisture in the air.