There are two common reasons for this symptom, first, chronic pharyngitis, after the patient eats, because of stimulation of the mucous membrane of the throat will appear corresponding symptoms, and then there is chronic pharyngitis, because the mucous membrane of the throat is congested, there is the presence of hyperplastic lymphoid follicles, the patient will also appear different degrees of foreign body sensation. Second, because the patient has reflux disease, such as reflux esophagitis, because of excessive secretion of gastric acid, which stimulates the mucous membrane of the throat, there is local swelling, and this symptom will also appear. If it is chronic pharyngitis, depending on the situation, you can use Chinese herbal medicines to clear the throat and benefit the pharynx, such as Golden Voice and Pharynx Pill, and you can use anti-inflammatory tablets to take, such as Huasu Tablets. If the disease is reflux, it is recommended to use drugs that inhibit stomach acid, such as omeprazole or Nexium orally. Try not to eat too much for dinner and ask for an empty stomach 3 hours before bedtime, which can reduce the secretion of stomach acid.