The invention discloses a plaster for treating osteonecrosis of the femoral head, osseous tuberculosis, osteomyelitis and osteoma, which is an oral medicament prepared from various medicaments and used for treating the osteonecrosis of the femoral head, the osseous tuberculosis, the osteomyelitis, the osteoma and the like. The plaster consists of gamboges, pearl, cinnabar, dragon's blood, hair, sanguisuga, tokay, coridius, centipede, ground beetle, long-noded pit viper, garter snake, nux vomica, hedyotis hedyotidea, suberect spatholobus stem, wooly datchmanspipe herb, Chinese forgetmenot root, garden balsam stem, small centipeda herb, combined spicebush root, pangolin scales, szechuan lovage rhizome, doubleteeth pubescent angilica root, Chinese angelica, incised notopterygium rhizome, India mustard seed, safflower, raw wild aconite root, raw aconite main root, turpentine oil, borneol and musk. The plaster has the effects of drawing out pus and dissolving stasis, dispelling wind and transforming pus, quickening network vessels and dispelling wind, transforming glomus and killing pain, and soothing sinew and quickening blood, has the effects of addressing both symptoms and root causes of diseases such as the osteonecrosis of the femoral head, osseous tuberculosis, osteomyelitis and osteoma, and can fulfill the aim of difficult relapse after curing. The plaster has a curative rate of 91.8 percent, and a total effective rate of over 99 percent in years of clinical application, and is favored by wide patients and consistently praised.