So one year ago I had a New Year’s hike in the Grand Canyon where I ended up giving my self trench/immersion foot. We had cold temperatures and wind-driven snow, and my feet were wet and numb for pretty much the entire day of hiking. We got to camp early (4 pm), and I got into my sleeping bag right away, but my feet were still a little numb when I went to bed 5 hours later.
If I knew then what I knew now I would’ve put hot water in a bottle and warmed my feet up right away. I probably could’ve prevented any long term damage. But alas, I had some lasting effects (red swollen toes) for a few months. It finally went away sometime in March.
Fast forward to yesterday when I had a very cold night of car camping and the symptoms came back – swelling in the same toes as before (all of the left foot, outside of the right). My feet weren’t wet at all, just cold for a couple of hours in the morning. So it seems the nerve damage is still around, and that cold is activating the symptoms. It’s not as bad as before, but the swelling still makes hiking less comfortable.
My question is, what should I do now to treat the symptoms while hiking? Most of the resources I can find online just talk about prevention, and I think a doctor would probably just tell me to not let my feet get cold. So far I’ve tried Aleve to help with the swelling and it seemed to work, but I also slept inside last night so that’s not very conclusive. So far my plan is to bring Aleve and some warm sleeping socks on my next hike, and if we have a very cold and wet day put a hot water bottle in the foot of my sleeping bag.
So, has anyone experienced this before? Any other ideas?

