Common causes of children’s throat clearing all the time are: laryngitis, postnasal drip syndrome, gastroesophageal reflux, etc. 1. Laryngitis: can be caused by eating irritating foods regularly. Inflammatory mediators usually cause the mucous membrane of the throat to become congested and edematous, and it is easy to breed phlegm, so it will cause pain in the throat and foreign body discomfort, which will make the child clear his throat all the time to alleviate this discomfort. 2. Postnasal drip syndrome: If the child suffers from rhinitis, sinusitis and other diseases, it is easy to make the nasal mucus backflow to the throat, which in turn causes irritation to the mucous membrane of the throat, resulting in the child has been clearing the throat action. 3. Gastroesophageal reflux (GERD): can be caused by bad eating habits such as overeating. Usually after eating, the stomach contents will cause reflux irritation to the mucous membrane of the throat, which in turn produces discomfort in the throat, so the child is always clearing his throat to relieve the discomfort. As you can see, the child has been clearing his throat, it is recommended to go to the regular hospital in time, clear cause targeted treatment.