The first disease is acute pharyngitis, acute tonsillitis, tonsillar ulcers and other diseases of the oropharynx. The first disease is acute pharyngitis, acute tonsillitis, tonsillar ulcers and other oropharyngeal diseases. This is mainly caused by viral or bacterial infections, and clinical examination shows acute congestion in the pharynx, tonsillar congestion, and even suppuration of the tonsils, tonsillar ulcers and other related changes, in which case clinical anti-inflammatory infusion treatment will have a significant effect. The second disease is a disease of the hypopharynx, commonly known as acute epiglottitis, which is characterized by paroxysmal pain in the throat, and the pain is very pronounced. The pain is aggravated when the patient swallows, and some patients may have breathing difficulties and other related discomfort. The third disease is that some patients have malignant tumors in the throat, such as laryngeal cancer, hypopharyngeal cancer, and cancerous subjects with rupture and erosion, which cause pain when the patient swallows.