Osteoarthritis(OA) is a very common disease which always destroys articular cartilage and damages bone beneath cartilage, synovium and tissues around joint . It's pathogenesis has been uncertain . As aging society coming, incidence rate of OA has gradually increased.. However treatments of OA haven't developedo Base on clinical experience, and combined modern Chinese herb medicine pharmaist with theory of TDS and mamufactured FRZTTIE which is a pure Chinese herb preparation that external use.In order to obs...