The invention relates to a medical prepared product containing the reaction product which derives from plant materials, in particular to a ChuiErBaoTing pulvis used for treating acute and chronic otitis media. The technical proposal adopted by the invention is that the invention is the preparation prepared by the following ingredients by weight: 4-9g of divaricate saposhnikovia root, 4-9g of forsythia, 4-9g of angelica dahurica, 4-9g of honeysuckle, 4-9g of heartleaf houttuynia herb, 2-6g of balloon flower, 4-9g of radix bupleuri, 8-12g of radix scutellariae, 2-6g of grassleaf sweelflag rhizome and 0.3-1g of muskiness. The beneficial effects of the invention are that: the invention is a pure Chinese medicine external pulvis, ChuiErBaoTing pulvis, which is developed by being based on the basic theory of the traditional Chinese medicine and combining clinical practice. The invention adopts the therapeutic principle of clearing away heat and toxic material, converging fluid and diminishing inflammation, thus achieving better curative effect. Proved by long-term clinical practice, the invention is characterized by significant curative effect, safe usage, no pain, no wound and so on, and is economical and convenient for administration of common people; therefore, the invention is worthy of popularization.