Probably a dumb question, but just out of curiosity, is there any kind of soap that works for that? I mean if you are someplace where can't get all that high-tech stuff? Vaseline fits that category, too, of course, as already suggested.
Any soap would definitely wash away. White lithium grease is available at practically any hardware store (Walmart has it too) but if there may be some sort of "homemade remedy", paraffin wax or something similar might do the trick.
