The invention discloses Myriberine A which is used for treating immunity inflammation, used for preparing a medicine for treating the immunity inflammation, and particularly suitable for preparing a medicine for treating rhinitis, and terfenadine and diclofenac sodium are used as comparison, the curative effect of Myriberine A is clear. An application of Myriberine A in preparation of the medicine for treating rhinitis is firstly disclosed, due to the fact that a skeleton type is brand new, activity for treating rhinitis is strong unexpectedly, the possibility of any inspiration provided by other compounds does not exist, Myriberine A has outstanding substantive feature and obvious improvement for preventing and curing rhinitis.

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