The invention discloses a 
medicine cake for treating 
waist injury. The 
medicine cake is characterized by consisting of the following herbal medicines by parts: 3 parts of 
symplocos chinensis, 2 parts of 
clematis florida thunb from Huzhou, 2 parts of drooping stringbush flower root and 
bark, 1 part of fruits of oriental grape, 1 part of macropanax rosthornii harms, 1 part of 
corydalis incisa, 1 part of roots of 
alstonia mairei, 1 part of vitis hancockii hance, 1 part of 
euphorbia hippocrepica hemsl, 1 part of 
tylophora arenicola merr, 1 part of rourea microphylia planch, 1 part of roots and stems of 
schisandra henryi C. B. Clarke, 1 part of roots of 
polygonum cynanchoides hemsl and 1 part of leaves and barks of siphonosmanthus delavayi stapf. In order to facilitate use and achieve a 
therapeutic effect, according to a preparation method provided by the invention, the 14 herbal medicines are powdered together, so that 
medicine powder, which has functions of promoting 
blood circulation and removing stasis, relieving swelling and eliminating stagnation, dispelling wind and eliminating dampness, is prepared; the medicine 
powder, when used, is added with white 
sugar and boiling water and then the materials are stirred, so that the medicine cake is prepared, and the medicine cake is externally applied to a 
waist, with 
efficacy acting on an affected part in a lasting mode to function as warming and activating meridians, relieving swelling and removing stasis and strengthening tendons and bones, so that an effect on treating the 
waist injury is achieved. The medicine cake disclosed by the invention has the advantages of being low in preparation cost, convenient to use, good in 
therapeutic effect and free from side effects.