Hi Dutch,
So sorry to hear about your challenges. You sound like a strong person with a robust sense of humour, so...
Get out there and laugh in your problems' face! Then stare them down and walk all over them with your Camino boots.
I've worked for months to keep my plantar fasciitis under control (left foot only, wonky ankle structure). I finished my Camino 3 weeks ago and my feet are still sore. I'm thinking I might have developed some PF in my "good" foot. I walked around Pere Lachaise Cemetery here in Paris for hours today taking photos. Cobblestones! Flashback!
Now, you probably know all this so forgive me if I seem to tell you how to suck eggs:
I use ice every day for inflammation. Not heat. Ice pack from the freezer. Apply for 10 minutes. Very hard to organise ice while on the Camino. I used to sit in the shower or tub every afternoon (I stayed in small hotels not hostels) and run VERY hot water over my aching legs and feet. Great for muscles, but ice is better for the plantar ligament. My PF was pretty much under control by the time I started my
Camino Frances, so I got away without using ice for 5+ weeks. I'm back to ice now that I'm able to manage a routine again. I suggest you try hard to use ice as often as you can while on your Camino.
I bought a small wooden roller/foot massager from The Body Shop. Recommended by my physiotherapist. Just roll your feet back and forth while sitting. Very light and small, easy to carry. It honestly doesn't seem to do much at the time but as part of a remedial multi-solution routine, who knows?
When you stretch, bend your knee on the stretched leg and get your toes higher than your heel. Hold for 30 seconds, repeat for groups of 4. Not bending your knee stretches the calf muscle, not the achilles/plantar group. You'll feel the difference. Go easy, when my leg muscles got very tight and stiff (last half of every day) I felt as though I might tear something!
I used/still use Voltaren twice a day. Topical non-steroidal anti-inflammatory ointment. Ibuprofen is the same thing but stronger. I didn't use Ibuprofen because I wanted to be able to pay attention to what was happening instead of losing my body in a fog of drunken smoosh.
You already know all this but maybe there's tweak or two in there that might be useful. I got a set of instructions from my podiatrist when I picked up my orthotics. A couple weeks later I went to my physiotherapist and reviewed it all - I had got a few little things wrong and she suggested the roller-massager as an extra. So extra info is good info.
All the very best on your Camino and I hope Mr Husband gets well soon.
Buen Camino, - Mike
Oh, and here's a P.S.: I met a woman while walking. 75yrs old. She was walking with a pin in her recently obviously badly smashed femur. She walked as far as she could each day then took a taxi. I say being there some of the time is better than not being there.