Removed the upper layer of skin with an emory bar and swabbed with h2o2, then sat on the deck in the sun with my feet up in the breeze. I repeated the swab before bed, and in the morning it was looking a lot better although slightly red. By the time I had posted, the redness was almost completely gone. I guess I heal quickly
Now I have to build up that layer of 'hard skin' again though... I bet that the next ruck is a pain!
Solid