Old remedy is to put salt on the entry site. Take a small piece of cotton ball, about the size of a pea. couple of drops of water just dampen. Put salt on damp cotton then put a bandaid with cotton on site. Let stay several hours,
the longer the better. May have to repeat. I have had sucess with this method. Grand parents used a piece of salted meat. Times have changed I don't care to tape salt meat to my foot.
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Coastal SC is home to me.