RESUMO
Objective: To discuss the effect of Chinese materia medica on xerostomia of patients with head and neck tumor undergoing radiotherapy. Methods: 56 Cases of xerostomia of patients with head and neck tumor undergoing radiotherapy were treated with Chinese materia medica which had the effect of clearing heat and lowering pathogenic fire, nourishing yinn and promoting fluid production. I Month later, the evaluation of xerostomia was done. Results: The effective rate reached 46.4%,the improved rate was 44.6%,the total effective rate was 91.0%,and the ineffective rate was 9.0%。Conclusion: The Chinese materia medica with effect of clearing heat and lowering pathogenic fire, nourishing yinn and promoting fluid production can promote salivary secretion, relieve the dry mouth, improve the life quality.