Polyflavanostilbene A for treating immune inflammation is used for preparing a drug for treating immune inflammation, and is especially applicable to preparing a drug for treating rhinitis. By taking terfenadine and diclofenac sodium as a contrast, Polyflavanostilbene A is clear in curative effect. The applications of Polyflavanostilbene A in preparing the drug for treating rhinitis are disclosed for the first time, the skeleton type is brand-new, the activity of Polyflavanostilbene A in treating rhinitis is unexpectedly strong, the possibility that other compounds give any prompt does not exist, and Polyflavanostilbene A has remarkable essential characteristics, and apparently, has obvious progress on preventing and treating the rhinitis.

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