Bug Bites

I have these bug bites on my feet, and they're incredibly annoying. I don't even know how they got there. Like I actually have 3 of them on the sole of my foot. How could a bug even get there to bite me! I don't have any bites anywhere else but like the most awkward place ever (well okay, there may be some worse spots, but I won't go there). Every time I wear close-toed shoes, my feet itch like crazy. And I can't scratch them! It is such a nuisance. I know this isn't the deepest of topics out there, but I want to world to know my frustration.