The invention discloses a drug used for diminishing inflammation, invigorating blood circulation, and dredging collaterals, and belongs to the field of traditional Chinese medicine preparation. The drug comprises semen strychni, raw radix aconiti, raw radix aconiti kusnezoffii, raw rhizoma pinelliae, raw arisaema heterophyllum blume, radix clematidis, peach kernel, resina ferulae, realgar, herba lycopodii, drosera peltata, phryma leptostachya, rhizoma corydalis decumbentis, rhizoma paridis, herba ephedra, cortex eucommiae, cassia twig, herba asari, cortex cinnamomi, calamus tetradactylus, rhizoma corydalis, and pseudo-ginseng. The drug is capable of softening hardness to dissipate stagnation, removing wind and dampness, and promoting blood circulation to remove meridian obstruction; applying the ingredients above to infected parts possesses obvious curative effects on traumatic injuries, joint pain, cervical spondylosis, lumbar disc herniation, tenosynovitis, ganglion, radiohumeral bursitis, myofascitis, ankylosing spondylitis, achilles tendinitis, muscle strain, rheumatism, and rheumatoid arthritis.