Ive Had Aleft Knee Replacement 8 Years Ago And Still

Ive had aleft knee replacement 8 years ago and still having lots of pain right knee has a torn meniscus lower back surgery and lots of pain there and down r leg to my foot non stop pain what do i need to do and what meds would
possibly work best? Sandy question I asked to the doctor please I talked to your question. I'm not sure how to send it I'm not used to this phone but I said I have had left knee replacement 8 years ago and still having lots of pain though lower back problems ain't going for my back down my legs and my foot