14. is boils: according to WebMD, boils are "A painful, pus-filled bump under the skin caused by infected, inflamed hair follicles" so 14 would be the best answer
16. is vitiligo: vitiligo causes skin to have blotches of discoloration, you might have seen some models on the internet with this condition (i have, that's how i know what it is.)
17: is warts: using process of elimination, this is the only one left!