The invention discloses a medicine for treating burn. The medicine consists of an externally applied medicine and an oral medicine, wherein the externally applied medicine comprises the following components: egg yolk oil, Chinese angelica, gromwell root, Dalbergia benthamii, golden thread, cortex magnoliae officinalis, sanqi, sappan wood, safflower, garden burnet root, Sichuan lovage rhizome, nardostachys root, Rhizoma corydalis, platycodon root, Bletilla striata, myrrh, frankincense, liquorice root, draconis resin, borneol, unprocessed rehmannia root, carbonized hair, bone fossil of big mammals, fleeceflower root, Corydalis bungeana, fineleaf schizonepeta herb and Sichuan chinaberry bark; the oral medicine comprises the following components: Chinese angelica, gromwell root, Dalbergia benthamii, golden thread, baical skullcap root, milkvetch root, cortex magnoliae officinalis, sanqi, sappan wood, safflower, garden burnet root, purslane herb, hairyvein agrimonia herb, Sichuan lovage rhizome, Rhizoma corydalis, platycodon root, Bletilla striata, myrrh, frankincense, liquorice root, nardostachys root, honeysuckle bud and flower, heartleaf houttuynia herb, dandelion, divaricate saposhnikovia root, common andrographis herb, debark peony root and peppermint. The medicine disclosed by the invention can diminishe inflammation, alleviate pain, resist bacteria, stop bleeding, remove the necrotic tissue, promote granulation, repair skin inflammatory tissues from the inside, effectively treat burn scars and improve the cure speed of first-degree and second-degree burns.