Medicinal plants for allergic rhinitis

Allergic rhinitis is an immunologically mediated disease that occurs frequently worldwide and is caused by a type I hypersensitivity reaction (IgE-mediated) to allergenic substances. The clinical symptoms mainly include rhinorrhea (runny nose), sneezing, nasal obstruction (blocked nose), nasal itching and ocular discomfort (red, itchy, watery eyes). Although these symptoms are not usually life-threatening, the quality of life of those affected can be significantly impaired. Many patients also suffer from sleep problems, fatigue and difficulty concentrating, which has a negative impact on their professional performance and social life [1].