Foreign body sensation in the throat after vomiting is mainly related to the mucous membrane damage in the throat, the main causes include local scratches, gastric liquid burning and congestion and edema. 1. local scratches: some of the hard substances in the vomit, may cause local mucous membrane scratches, resulting in local foreign body sensation. 2. Gastric juice burns: gastric juice contains a lot of gastric acid, along with food reflux into the throat when vomiting, stimulating the mucous membrane of the throat, causing the corresponding situation. 3. Congestion and edema: the process of vomiting will cause local pressure increase, capillary expansion, further leading to congestion and edema, causing the symptoms of foreign body sensation in the throat. The corresponding condition, you need to go to the ENT department for further investigation to determine the specific throat condition, under the guidance of the clinician for standardized treatment.