Patients who have pain on one side of the throat when swallowing saliva need to clarify whether it is caused by simple inflammation or by mouth ulcers or pharyngeal cavity mucosal ulcers. If it is inflammation, the patient can take oral anti-inflammatory oral solution of busulfan for treatment, or take antibiotics, such as azithromycin or roxithromycin, and need to clarify the allergy history before using the medicine. If the ulcer is triggered, the patient can consider spraying with open throat sword spray or spraying with Guilin watermelon cream spray. If the pain is particularly severe you can also apply diclofenac sodium spray, both of which are clinically effective in providing anti-inflammatory and pain relief, as well as promoting the healing of the ulcer mucosa. If necessary, patients need to go to the hospital for further consultation to avoid delays and try to eat lightly, not to smoke and not to drink alcohol.