Compositions and methods for the treatment of Bowens disease, an orphan disease, are described. In addition, compositions and methods for the treatment of recurrent respiratory papillomatosis (RRP), an orphan disease, are described. Compositions and methods for the treatment of stage 1 melanoma are also described. The compositions comprise one or more active ingredients selected from the group consisting of: chloroquine, amodiaquine, and an antibiotic such as metronidazole. The methods comprise administering a therapeutically effective amount of such compositions to a subject in need thereof.