Sore throat may be caused by upper respiratory tract infection, trauma, allergy, reflux pharyngitis and other reasons. 1. Upper respiratory tract infection: acute pharyngitis, acute tonsillitis, acute laryngitis and other diseases caused by hemolytic streptococcus, pneumococcus, viral infections and other factors can cause local inflammatory reaction in the throat, resulting in sore throat. 2. Trauma: swallowing foreign objects such as fish spikes and other sharp objects scratch the throat, resulting in sore throat. 3. Allergy: localized allergic reaction in the throat caused by contact with allergic drugs and food may also lead to sore throat. 4. Reflux pharyngitis: Pain is caused by gastric acid reflux due to digestive tract diseases, which causes localized irritation to the throat. In addition to the pain in the throat may also be related to the stimulation of tobacco, alcohol, spicy food, the onset of the disease should be promptly to the hospital, please specialist examination judgment.