If I ever pop a blister by puncturing the dead skin with something like a needle to let the fluid out, it seems like several hours later, the same dead skin is pocketing fluid again. Why is that? Dead skin shouldn’t be able to heal like that, right? Shouldn’t the hole remain there?
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You shouldn’t pop the blister. You should wash it gently and then wrap it to protect the blister and keep it from getting dirty. The blister is your body healing itself.
The fluid is there to protect the skin underneath it while it heals. It’s your body making a little pillow to protect the damaged skin.
The cells underneath the part that was damaged and separated are leaky because they’re not supposed to be on the outside of your body. The burnt layer is still structurally intact but not attached to the underlying layer that’s leaking and any unnatural space in your body will want to fill with fluid.
If you pop it like a pin hole, then that hole will be small enough to essentially glue itself shut as the exposed tissue underneath continues weeping and trying to refill.
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