The throat is tight after eating nothing, may be food irritation, chronic pharyngitis, allergic pharyngitis and other causes. 1. food stimulation: diet too spicy, too hot or hard food, the mucous membrane of the throat to produce adverse this, resulting in mucous membrane congestion, edema, appear throat tightness. 2. Chronic pharyngitis: throat tightness after eating may be due to mechanical stimulation of food leading to symptoms of chronic pharyngitis, occurs in the mucous membrane of the throat and submucosal tissue congestion and edema. There will be increased secretion and tightness in the throat, which may also cause irritating cough in severe cases. 3. Allergic pharyngitis: The tightness of the throat may be due to allergic reactions triggered by contact with allergens during the diet. This leads to congestion and edema of the mucous membrane of the throat, and tightness of the throat occurs. The throat can be tightened after eating, it may also be caused by mental and psychological factors, such as the symptoms continue to not subside or gradually aggravated, it is necessary to consult a doctor in a timely manner. If the symptoms don’t go away or get worse, you should consult a doctor. After the diagnosis is clear, you should follow the doctor’s instructions and take the appropriate treatment plan.