Flat foot blisters within sand?
It sounds like you are allergic to something surrounded by the sand or the water. Especially since the flip-flops don't hang on to you from getting blisters. My brother has flat foot and he does not walk plenty to get callus on the bottom of his feet, so his foot are sensitive to a lot of things and his foot break out in blisters and hives. The skin on anyone's arches is thinner than the skin on the rest of the foot, so I'm guessing that something within the sand is really irritating the heck out of your arches. Sometimes jellyfish eggs wash ashore, but they die exceptionally soon. You could be suffering from a sensitivity to the dead eggs. Look closely at the "blistered" areas, do you see what looks approaching a white scar just in a dot? Lots of microscopic stuff surrounded by sand.
Try putting sunblock on the bottoms of your feet, or possibly bullfrog water resistant sunblock on the bottoms of your foot to see if that helps somewhat. Good luck.
how soon does it pinch before they appear? do you put your foot ten feet and you carry them? is it because the sand is hot? or your feet are of late smooth and don't have any caluses on them (or a build up of limp skin).
Either know your limitations and only amble for a certain point on the sand (then switch to marine shoes or sandals), maybe tramp on cement or gravel walkways and build up your foot, as in roughness of your foot.
Maybe go to a foot doctor and see what the utter, maybe they enjoy some kind of spray to put on your foot to help prevent blisters too.
Its not because you enjoy flat feet. Hot sand burns everyone. Wear you fongs, (flipflops or anything you can the little dunlop rubbers) while you look for a place to sit, and take them rotten only when you run for the sea.
how soon does it take beforehand they appear? do you walk ten foot and you get them? is it because the sand is hot? or your foot are just smooth and don't own any caluses on them (or a build up of dead skin).
Either know your limitations and just walk for a convinced point on the sand (then switch to water shoes or sandals), conceivably walk on cement or gravel walkway and build up your feet, as surrounded by roughness of your feet.
Maybe budge to a foot doctor and see what the say, possibly they have some character of spray to put on your feet to give support to prevent blisters too...Cassie
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