Hi, I could be totally not on the right lines, and obviously I'm no professional, but has your mom sought much rehabilitation? The reason I say that is that I also had an inflamed disc from a fall - and the bottom line was, no matter how many pills I took, if I kept putting myself through the commute to work and sitting in my office chair, I was making it more inflamed. It was also pressing on a nerve which wasn't fun!
The pain was unbearable and many days I could barely walk. I just feel that a lot of people out there shouldnt just have to 'manage' pain. I know there are many conditions that require pain management but, if I hadn't gone to see an Osteopath, I might've just had to deal with it and take pills the rest of my life too! The Osteopath advised me that the inflammation will never die down if I dont treat it properly, so initially I had to take a cut from work - 6 weeks

but after that I've had help from this person in terms of rehabilitating myself, learning to do things all over again, in a way that protects my spine. Yeah I've had pills in the meantime, but I'm now off the pills, walking normally and feeling good. My movements are limited, and I'm only 25 but it's better than being in that amount of pain.
Osteopaths arent for everyone, but they can give good advice all the same.
Simple things like protected ice packs being placed directly over the inflammation can be slow relievers, lots of glucosamine, vit C and water. And make sure she lies on her side in bed with a pillow inbetween the knees.
Lying on her back or stomach will probably compress the inflamed disc and give her agony in the mornings.
Like I said, I could be wrong but that was my condition and I feel pretty good now. I will have set-backs, because I'll find something I can't do and pay the price, but I know how to deal with it now and can get rid of the pain quickly.
Doctors do not have the right knowledge to advise on back problems - all they do is give you pills when it's not the only route. People with back problems are definitely put to the back of the queue and it really shouldn't be like that!