Hyeonggaeyeongyo-Tang for Treatment of Allergic and Nonallergic Rhinitis: A Prospective, Nonrandomized, Pre-Post Study

Min-Hee Kim, Jaewoong Son, Hae Jeong Nam, Seong-Gyu Ko, Inhwa Choi, Min-Hee Kim, Jaewoong Son, Hae Jeong Nam, Seong-Gyu Ko, Inhwa Choi

Abstract

Hyeonggaeyeongyo-tang (HYT) is an ancient formula of oriental medicine traditionally used to treat rhinitis; however, clinical evidence has not yet been established. The aim of this study was to investigate the short-term and long-term efficacy and safety of HYT for chronic rhinitis. Adult subjects with chronic rhinitis symptoms were recruited. The subjects received HYT for 4 weeks and had follow-up period of 8 weeks. Any medicines used to treat nasal symptoms were not permitted during the study. The skin prick test was performed to distinguish the subjects with allergic rhinitis from those with nonallergic rhinitis. After treatment, the total nasal symptoms score and the Rhinoconjunctivitis Quality of Life Questionnaire score significantly improved in the whole subject group, in the allergic rhinitis group, and in the nonallergic rhinitis group, with no adverse events. This improvement lasted during a follow-up period of 8 weeks. Total IgE and eosinophil levels showed no significant difference after treatment in the allergic rhinitis group. HYT improved nasal symptoms and quality of life in patients with allergic rhinitis and nonallergic rhinitis. This is the first clinical study to evaluate the use of HYT to treat patients with rhinitis. This trial has been registered with the ClinicalTrials.gov Identifier NCT02477293.

Figures

Figure 1
Figure 1
Effects of HYT on the AR group and the NAR group. (a and c) Mean TNSS at each visit. (b and d) Mean RQLQ score at each visit. ∗Significant difference (p < 0.05) compared with week 0 (baseline) in each group (repeated-measures ANOVA test and Bonferroni post hoc test). HYT, Hyeonggaeyeongyo-tang; AR, allergic rhinitis; NAR, nonallergic rhinitis; TNSS, total nasal symptom score; RQLQ, Rhinoconjunctivitis Quality of Life Questionnaire.

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