Will the groomer take care of the ticks in my dog's coat? part 2?

okay, so i just posted that question, and i think i'm going to pull the ticks out. but if the head doesn't come out, is that i bad thing? should i be worried? even if it's not a problem, can i get it out? and when i do pull the tick out, will it hurt my dog? if it does, will it hurt much? what is the most painful it can get? i'm not going to put her on the k-9 atvantixs plan (or whatever) because i don't live in a tick prone area. my grandparents do. but i'll buy the stuff just when she comes over so i don't have to deal. where can i get it? is it at the drug store, or do i have to buy it from my vet? if there's any questions you think i'm missing, please answer anyway. it would be mucho appreciated.