Anthrax is treated with antibiotics.
Skin anthrax responds very well to antibiotic treatment. The current practice in Saskatchewan is to give a 14 day treatment course of antibiotics if skin lesions develop.
Sometimes a preventive 10- to 14-day course of antibiotics may be prescribed to people who had direct, unprotected contact with infected animals or carcasses, and have broken skin.
For inhalation exposures only, the official recommendation used during the U.S. bioterrorism events of 2001 was to use preventive antibiotics for 60 days.
Mortality is less than one percent with antibiotic treatments. Although treatment doesn't shorten the evolution of skin lesions, it does prevent development of a more serious form of anthrax.