The invention discloses a medicament for treating burn. The medicament is prepared from dragon's blood, Chinese angelica, kaolin, calamine, pearl, rhinoceros horn, frankincense, musk, myrrh, paris root, realgar, watermelon frost, prepared elephant hide, borax, dicatechin, borneol and gypsum rubrum which serve as raw materials. The medicament can be prepared into various medicines which are used clinically. In a formula, the medicaments are reasonable in compatibility, have the effects of clearing heat and detoxicating, inducing diuresis, relieving pain and stopping bleeding and promoting tissue regeneration under the synergetic treatment action, and are suitable for burn symptoms of different degrees. Clinical test results prove that the medicament has an obvious effect, does not have toxic or side effect, and is safe and reliable in clinical application.