What Is Causing My Foot To Hurt?

Hi, my foot has been hurting for a little over a month now, im not sure if It's related to the fact I had ant bites ,and yes I had to pop it to get the pus out. I used a clean tweezer, washed my foot with a sanitizer wipe, and sprayed some peroxide. Before I had popped them(2) my foot was red and swollen, basically my foot felt bruised inside. Eversince then my foot hurts when I stretch it, sometimes when I walk and drive, and especially when i flex it. I don't want to go to the doctor for no reason. im not sure if this is because the ants or somethings wrong with my foot ? Help please.