"...and a surprising crop of boils, disturbingly like the Aleppo button, had broken out in Surprise..."
—P. O'Brian, The Hundred Days, 96
"A disease, also known as oriental sore, endemic in parts of Asia and Africa and caused by infection with Leishmania tropica, a parasite transported by sand flies. Various regional synonyms are used for the disease, for example, Bagdad boil, Delhi boil, Biskra button, and many others." (A Sea of Words, 82)
Yeah, I don't think I ever had this disease, but I do remember getting bit ALL FREAKIN' OVER by sand fleas (not sand flies, and not in the Middle East or Far East). That was somewhat less than enjoyable.