Our expert says:
Lee, it sounds like there is some sort of an infection and that you need to take antibiotics. It might also be that there is still a piece of fish fin stuck under your skin. It will have to be removed otherwise the infection will take forever to clear up. If you want to send the pictures, you can send them to firstname.lastname@example.org as I haven’t received anything up to now (Saturday 20h30). Good luck.
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