Sorry it took me so long to come back and reply
I'm not getting e-mail notifications and when I tried changing my settings (2 or 3x) something went wrong, maybe the site was on maintenance. Now on to your "?s":
What do you think of Viktor Schauberger's water observations? Also, would MSM, Chondroitin, and Glucosamine potentially help? I do not know about that, but met someone who was pretty "hung up" on some type of water that he had to buy very expensive equipment to "make" at home. My take on that is a little skeptical as rarely can mankind improve over what God/nature provided. So as long as the water is pure, meaning free of contaminants and additives like chlorine (through evaporation or filtering), fluoride (reverse osmosis gets rid of it), etc., that's good enough for me
Lying across the bed on stomach, back, or both while slowly lifting head and lowering? I'm sorry I forgot to mention one must lie on the back.
Any ideas to improve skin feeling of mag oil (really mag chloride in water) residue or improve absorption? Diluting works for me, but if that didn't work for you/her then try to obtain some DMSO to enhance absorption, or at the very least I would try covering the area with a piece of plastic then apply some heat for 10-20 min., one of those small microwavable packs they sell at drugstores could work or a mini hot water bottle (I have one that I found once at a dollar store!), and if there's still any residue just wipe off with a moist cloth.
Here's one more thought: I believe that when a physical condition doesn't respond to most of our external efforts to heal it, it's because it's really trying to tell us that something in our emotional or spiritual life is not as it should and needs addressing. Some years ago I discovered Louise L. Hay's little book "Heal Your Body" and it was very revealing to me in my own health problems, I have recently dug it out to start the affirmations again because I've relapsed... So just in case you might want to explore that as a possibility here's a link where you can check not only neck problems but many others which you or someone else reading this may find helpful. Another really good book about intuitive healing is "Awakening Intuition: Using Your Mind-body Network for Insight and healing" by Mona Lisa Schulz, M.D., who has at least 2 medical specialties and is also an intuitive healer. Several years ago I called during her show on Hayhouseradio.com and she did a reading on me which was pretty dead on.