I feel for you. I herniated a disk, kept trying to ski on it ( I was in Chile after all), tried "toughing it out" for a couple months. When I finally went in for a diagnosis, which it sounds like you already have, I had noticible atrophy in one leg, severe numbness, foot drop, sciatica and couldn't sit, stand, roll over or bend over. I had struggled with intermittent flare ups since I was 19 and had a "tweek" on a climbing fall. Posture and weight gain had lead to increasing frequencies in these episodes with age. Being taken out at the resort proved unrecoverable without help. Once it was diagnosed gentle PT exercises and muscle relaxers helped, and as I got more comfortable I started " easy" Yoga while continuing PT. Yoga helped greatly.
Get a PT to do manual manipulation to suck that herniation back in, and to help you target the muscles that need help. I also had/have a special kneeling chair at work that open the angle between my torso and femur that has helped alot, similar to the wedge thing I bet. I still have ocaisional flare ups, but I now have better tools to deal with them. I should be doing Yoga, but I am not.
Hubby had the same herniation as you, cortizone was only temporary relief. He ended up getting surgery. We are both at similar levels of recovery. Mine took longer, but had less risk of a surgical accident. Whatever you do, be proactive, the nerve damage can be permanent.