Sore throat is a relatively common clinical symptom, with many causes. If the duration is short, it could be due to acute pharyngitis, acute tonsillitis, or acute epiglottitis. If the condition lasts longer or recurs frequently, it may be caused by chronic pharyngitis or chronic tonsillitis. Therefore, after the onset, it is necessary to visit an otolaryngology department for diagnosis, where a laryngoscope examination and routine blood tests can be performed to clarify the specific cause, before targeted treatment can be administered. Regular follow-ups are also needed to monitor the treatment effects.