Wear taller socks next time!
(honestly, socks? in a kayak?)
For now, the folks in the aloe, lots of water for hydration, and some anti-inflammatory meds camp are giving advice that works for me.
Vinegar did seem to cool things down back in the day, but I'm not sure it did much for healing.
Better luck next time and I hope the fishing was good and you feel better soon.
Geno