Step 1- Wear the same shoes over and over again and posthole as much as possible to get your feet good and raw.
Step 2- Develop Hot Spots.
Step 3- Do nothing about it. Keep hiking.
Step 4- Develop Blister(s).
Step 5- Remove layers of filth: Begin with shoes, peel off dirt crusted socks, scrub through toe-mud.
Step 6- Clean & Assess.
Step 7- Cut MoleFoam into a horseshoe shape which will fit around the blister.
Step 8- (now this is the clencher folks) Cover with Leuko Tape. Seriously, this stuff is great. Get some. Now.
Step 9- IF you can spare ’em, put on a pair of clean socks. If you are backpacking and probably just going to continue walking through mud all day, save your clean socks for bed time or more desperate times.
Step 10- The next day, still holding strong.
When you get home and can better clean and treat, do so. If you’re lucky, you may discover other, much larger blisters.
Lance if the pressure is causing discomfort (but make sure you’ll have a few days to let the skin stay clean and toughen back up).
Then feel free to gross yourself out by peeling off the skin to see what your epidermis looks like from underneath!