If a child often breathes heavily, it means that the child’s pharyngeal cavity may have an obstructive problem, such as rhinitis. If the nose is not well ventilated, the only way to breathe is to open the mouth, it is recommended to go to the hospital for a detailed examination. If the diagnosis is rhinitis or adenoid hypertrophy, you need to spray with mometasone furoate nasal spray to relieve, at the same time, you can consider oral nasal abundance of Tongxiao granules, to improve the state of the baby’s nasal cavity inside, regular treatment, the child’s open-mouth breathing will have some improvement. There is also a consideration of tonsil hypertrophy, because the child’s tonsils are often inflamed, if the tonsils are over-enlarged, it is easy to block the patient’s pharyngeal cavity, resulting in a foreign body sensation is obvious, there is a sense of blockage, so the patient will often be breathing heavily, if necessary, we can consider the hypertrophy of the tonsils to be removed.