Advances in Research on Plant Extracts for Effective Treatment of Allergic Rhinitis and Their Mechanisms
Allergic rhinitis(AR)is a clinically common and frequent chronic respiratory disease.Once the disease outbreaks,it seriously affects the physical and mental health of patients.Therefore,the research and development of effective drugs have always been the focus and difficul-ty of AR research.Western medicine usually uses antihistamines,nasal spray hormones,and anti-leukotrienes to treat AR,but it is easy to de-velop drug resistance and dependence.Traditional Chinese medicine uses Chinese patent medicine,such as Yupingfeng granules,in combina-tion with acupuncture,acupoint massage,and other traditional Chinese characteristic therapies to treat AR,but the effect is slow.The combi-nation of traditional Chinese medicine and western medicine can effectively avoid many disadvantages brought by traditional Chinese medicine or western medicine during AR treatment,and it is the first choice for treating AR at present.Specifically,the role of plant extracts is becom-ing more and more important,and many new research achievements have been made.The author summarizes the research on AR pathogenic mechanism and concludes the treatment of AR by single medicinal plant extracts and combined extracts of multiple plants in terms of plant classification,medicinal part,extraction method,drug concentration,prescription composition,material basis,and mechanism,and the existing problems in the research are discussed and prospected,so as to provide a reference for the development of botanicals for treating AR.