鼻咽癌(NPC)是我国常见肿瘤之一,目前放化疗联合治疗可将局部晚期NPC患者局部控制率提高到95%左右[1]。虽然患者生存率获得了提高,但放疗后出现的吞咽疼痛、张口困难、鼻塞、口腔干燥等症状严重影响了患者生活质量。放疗后患者的不良反应主要表现为唾液腺损伤、口腔黏膜损伤和颈部皮肤损伤[2],放射性黏膜炎、鼻窦炎等多表现为鼻塞、分泌物增多及嗅觉减退等。鼻腔冲洗可及时清除鼻腔内脱落的肿瘤坏死组织及分泌物,减轻放射 Nasopharyngeal carcinoma (NPC) is one of the common tumors in our country. At present, radiotherapy and chemotherapy combination therapy can increase the local control rate of locally advanced NPC patients to about 95% [1]. Although the patient survival rate has been improved, but after radiotherapy swallowing pain, mouth opening difficulties, nasal obstruction, dry mouth and other symptoms seriously affect the quality of life of patients. Adverse reactions in patients with radiotherapy mainly manifested as salivary gland injury, oral mucosal injury and neck skin damage [2], radiation mucositis, sinusitis and other performance for the stuffy nose, increased secretions and loss of smell. Nasal irrigation can promptly clear the nasal tumor necrosis of the shedding and secretions, reduce radiation