3) There is no reason to suppose any different response to
treatmentin people with diabetes, or to
natural clearance of either HPV or the molluscum
contagiosum virus. To my knowledge, the cell-mediated arm of the immune system, which is primarily responsible for both viruses, is not affected in diabetes, even when poorly controlled.
4) Both. That is, recurrent warts can can involve previously treated spots, the same general area, or both.