Traditional Chinese medicine composition containing rhubarb, scutellaria baicalensis and coptis chinensis

The invention relates to a traditional Chinese medicine composition containing rhubarb, scutellaria baicalensis and coptis chinensis. The traditional Chinese medicine composition is prepared from the following components in parts by weight: 15-24 parts of rhubarb, 12-22 parts of scutellaria baicalensis, 14-20 parts of coptis chinensis, 12-22 parts of cortex dictamni, 10-18 parts of coix seeds and 12-20 parts of periostracum cicada. The traditional Chinese medicine composition can be an aqueous preparation, and is prepared by the following steps: (1) weighing all traditional Chinese medicinal materials according to the prescribed amount, and putting the traditional Chinese medicinal materials into an extraction tank; (2) adding water which is 5-15 times weight of the medicinal materials into the extraction tank for 1-3 hours; (3) filtering to remove residues, and keeping the filtrate for later use; (4) putting the residues into the extraction tank once again, adding water which is 5-15 times weight of the resi