It's definitely a doable task, it may end up eating up all your free time depending on how fast a reader you are and how well you retain material. I'm assuming you are interested in dermatology (although this is rather late for an audition rotation) so it's good to know ahead of time: there is a lot of reading as a dermatology resident. If going home after clinic and reading doesn't sound like your cup of tea, residency is going to be rather painful for you.