Spider Bite or something else?

I recently noticed a bump on the left side of my left foot between my pinky toe and my heel, it itched badly at first so I thought it was a mosquito bite, duh! Now it looks worse and its bright red and purple at a point of it, its swollen around the edges, it hurts when I squeeze it. Thoughts?

I recently noticed a bump on the left side of my left foot between my pinky toe and my heel, it itched badly at first so I thought it was a mosquito bite, duh! Now it looks worse and its bright red and purple at a point of it, its swollen around the edges, it hurts when I squeeze it. Thoughts?

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Spider Bite or something else?