Mom Has Back Pain

Hi guys! My moms been suffering from low back pain for the past 6 months. She’s seen a doctor and he’s told her she has a slipped disk and offered surgery or “try and exercise and strengthen the back”. She hasn’t been doing anything and has had several days where she can’t even get up from bed. She has also stated that she feels it down to her leg and thinks the nerves may be damaged but neither of us are experts. She doesn’t want surgery (thank goodness) because she’s read about risky they may be. I’ve finally convinced her to go to the gym with me. I live abroad in university so I can’t coach her.
I want to teach her some exercises she can do by herself that are of course easy. She can’t bend over fully so i’m planning on making her do high rack pulls and either gradually lower the rack or increase weight.
Could you guys give me any tips of helping her?
Thanks!