That night he felt swelling all the way into his calf. By the third day, the reader thinks there is an infection in the lesion and the tissue is dying (necrosis). This picture was taken on day 6.
There's just no way to know for sure what, if anything, bit this reader. If there is a bite, the lesion could be from some sort of venom or it could be infected. There are just too many possibilities here, so a wound that swells, hurts, oozes or gets hot always warrants a trip to the doctor.
Any opinions expressed here are for educational purposes only and are not intended for diagnosis.
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