What Causes Swollen And Painful Foot ?

I got rug burn in two spots on my foot. At first they were a normal pain- assumed with rug burn. 10 days later my foot is swollen, painful to walk on and they are constantly leaking a orangish fluid that gets really hard when it dries on my skin. To relieve some pressure I ve actually found myself squeezing out this fluid and pus out of the burns. I ve been using lots of hydrogen peroxide and rotating between covering them and leaving them open to air. Any additional recommendations?