Pain Management for neck?

My mother got hurt working in a psych ward in November. She has 3 badly herniated disks (I think it's C4-C6). They've tried epidurals, haven't worked, anti-inflammatories don't do much, and they told her there is nothing they can do. She can hardly sleep, she's on narcotics (she takes 1-2 percosets a day) and it at her wits end. They say surgery only has a 10% chance of working and only lasts up to 5 years. Has anyone been through this? Are there any other options that they haven't mentioned or don't know about? She isn't too keen on not being able to work and being in excrutiating pain for the rest of her life. If you know of any procedures, please give me your sources so I can show them to her. She's a nurse so she's going to want to see them, thank you so much!