Roaccutane and Rhinoplasty Combination Safe?

I got closed rhinoplasty done 3 weeks ago. I finished a 4 month (20\60\60\60mg) roaccutane treatment about 7 weeks before my rhinoplasty. I didn't talk about this with my surgeon at all since I didn't know it was relavent until now. my skin was actully pretty oily again when I got the surgery done and started to break a little which is why i wanted to complete one more month of it. 1) Could I have done damage by not waiting enough? 2) Is it safe to take it now? (my nose has healed well so far)