text_1: Therapeutic use of the drug Dapsone to treat pyoderma gangrenous is based on anecdotal evidence.
text_2: Effective therapies included topical superpotent corticosteroids; intralesional injection of triamcinolone acetonide at the ulcer margin; topical cromolyn sodium; oral dapsone, prednisone, cyclosporine, mycophenolate mofetil; and intravenous infliximab.