Swelling and foreign body sensation in the throat is related to acute laryngitis, acute pharyngitis and acute epiglottitis. 1. Acute laryngitis: hoarseness (caused by congestion and edema of the mucous membrane of the vocal folds), laryngeal pain (foreign body sensation, dryness, discomfort, burning sensation and pain in the throat), dyspnea, fever, lack of appetite, and other symptoms, which may also be accompanied by inflammatory symptoms in the nose and pharynx. 2. Acute pharyngitis: redness and swelling of the pharynx, burning pain and blockage, unfavorable swallowing, hoarseness, headache, cough and phlegm may occur. 3. Acute epiglottitis: Difficulty in swallowing, severe pain in the throat, slurred speech, epiglottis is often swollen like a ball, and foreign body sensation may occur. Swelling throat with foreign body sensation may also be caused by acute tonsillitis, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.