Pain after Left Upper Lobectomy

I had my LUL removed via minimally invasive surgery on 11/14 and was discharged from the hospital on 11/16. I am progressing well and have only mild shortness of breath after going up stairs. I am the primary caregiver for my 91 yo mother so am pretty active. My only pain is at night and it’s mainly in my back, eventually radiating to beneath my left breast. It is relieved eventually by 10 mg. of oxycodone. I have tried ibuprofen 800 mg every 8 hours hoping that would carry me through the night but like clockwork, I still awaken between 2-3 AM. I have also used a heating pad without much success. I really don’t want to rely on opioids. Any suggestions? Thanks.