Recommendations for a good patch or brace for lower back pain?

I have problems between L1 and L5 of my lower back. The L5 and my SI joint being the worst. It causes compression on my nerves, which leads to sciatica of my right leg. Yay...😕 I use Icy hot patches with or without lidocaine. They never move. I also occasionally use a back brace I got from Walgreens pharmacy. It works really well. I see a wonderful chiropractor weekly, with the latest technology. I use a wobble ball everyday I got off Amazon, chiropractor recommended. I walk daily. Even if it's 5 mins at a time, several times a day. Something else I use is a TENS/NMES machine. Recommended by my chiropractor. Fantastic results. I do two, 30 min. sessions, once or twice a day. If you choose to get the tens machine, make sure it's the tens/nmes machine, not just the tens. Hope this helps in getting you some relief. I started doing physical therapy for 10 weeks, but going to this chiropractor seems to be helping much better. I can walk farther and have less pain now.