What causes a sore throat?
Generally, the term "throat" refers to the pharynx. Sore throat may be caused by excessive voice use, poor sleep, laryngitis, epiglottitis, gastroesophageal reflux laryngopharyngopathy, and other conditions. If you experience any discomfort, seek medical attention promptly and undergo symptomatic treatment under the guidance of a qualified physician. Detailed explanations are as follows:

1. Excessive Voice Use
Extended periods of loud speaking, singing, shouting, or persistent coughing may cause fatigue of the throat muscles, damage to the vocal cords, and inflammation of the pharyngeal mucosa due to excessive friction, resulting in pain. It is important to schedule voice usage appropriately, take breaks at regular intervals, and drink water as needed to keep the throat moist.
2. Poor Sleep
Severe snoring or mouth breathing during sleep can dry out the pharyngeal mucosa and cause airflow-induced irritation, making it prone to throat pain. For individuals who snore heavily, the condition may be improved by adjusting sleeping positions, losing weight, or using oral appliances.
3. Laryngitis
Laryngitis is commonly caused by viral or bacterial infections or inhalation of harmful gases. Inflammation of the laryngeal mucosa causes congestion and edema. Inflammatory irritation of the nerves in the larynx may lead to throat pain, particularly noticeable during speaking, and may be accompanied by symptoms such as hoarseness and coughing. Treatment may include medications such as ribavirin granules, azithromycin dispersible tablets, and Huangshi Xiangsheng Pills, under a physician's guidance.
4. Epiglottitis
Epiglottitis is mostly caused by infection, allergic reactions, trauma, or other factors leading to inflammation of the epiglottis and surrounding tissues. Swelling of the epiglottis can compress surrounding tissues, obstruct the airway, cause severe throat pain, and difficulty swallowing, with pain often radiating to the ear. Patients may also experience symptoms such as fever and difficulty breathing. Treatment may include medications such as Ceftriaxone Sodium for injection, Dexamethasone Sodium Phosphate Injection, and Budesonide Suspension for Inhalation, used according to medical advice.
5. Gastroesophageal Reflux Laryngopharyngopathy
Gastroesophageal reflux laryngopharyngopathy occurs due to dysfunction of the lower esophageal sphincter, excessive gastric acid secretion, and the reflux of gastric contents into the throat. This may irritate the throat mucosa, causing mucosal congestion and edema, resulting in throat pain. It may also be accompanied by symptoms such as heartburn and acid regurgitation. Treatment may include medications such as Omeprazole Enteric-coated Capsules, Domperidone Tablets, and Hydrotalcite Chewable Tablets, used according to a physician's instructions.
In daily life, it is important to maintain fresh and humid indoor air, use the voice appropriately, follow a light diet, maintain good sleep habits, avoid excessive fatigue, and engage in physical exercise to enhance immunity.