Recently Had Colon Cancer. Lower Anterior Resection. My Tailbone Was

Recently had colon cancer. Lower anterior resection. My tailbone was damaged during the long period of time I was on the table. Now I can't sit. Too painful. Going Ion 6 weeks. It's impossible for me to leave house drive in car or do anything that requires sitting. Is there anymore topical anesthetic that can be applied to calm down nerves and pain Like lidocaine