Pediatric Oncologist information?

i really want to pursue that as a career(im gonna be a freshman next year, but im figuring out the cles i need to take in high school for it) but i was wondering if i ever have to draw blood. this really i feel is something i want to be since i know kids that have battled with cancer, so please specific information would be helpful on what i would be doing exactly. also do you know how much they make?thank you!