Limbaugh knew nothing about Sandra Fluke's sex life, nor is he any sort of expert on any woman's need for hormone therapy. He was just being a stupid, rude bully.
A doctor might prescribe birth control pills for many reason other than contraception, and recreational sex is a vital part of human behavior.
Limbaugh thrives on controversy and ignorant diatribes. I don't think he has been anything other than a force for evil ever since he started his diatribes.