How long should I expect to be in pain post lipo 360?

I am 2, almost 3 weeks post op from lipo 360. How long should I expect to be in pain?. I’m currently taking otc Tylenol. But i am still in quite a bit of pain. I’m very stiff and i find that my back has the most pain. I’m also still very stiff. I’ve been off work for the past few weeks and I totally can’t go back until my pain is under control and I’m less stiff. What’s a normal timeline of relief?