The burning sensation of fever in the throat may be caused by acute pharyngitis, chronic pharyngitis, reflux pharyngitis and other diseases. 1. Acute pharyngitis: acute inflammation of the pharyngeal mucosa, submucosa and lymphatic tissue. It is often caused by viral infection, bacterial infection and physical and chemical factors such as high temperature and dust. It is characterized by acute onset, dryness and burning in the pharynx at the beginning. Followed by sore throat. Severe can be accompanied by fever, headache and limb pain. 2. Chronic pharyngitis: chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissue. Mostly caused by repeated episodes of acute pharyngitis and chronic inflammatory stimulation of the upper respiratory tract. It is characterized by various discomforts in the pharynx, such as foreign body sensation, burning sensation, dryness, itching, irritation and mild pain. 3. Reflux laryngitis: gastric contents reflux to the throat, stimulate the mucous membrane of the throat, resulting in burning sensation in the throat, foreign body sensation and other symptoms. If there is burning sensation in the throat, it is recommended to consult the hospital for diagnosis and treatment.