Hi, Two days ago I was walking near the ocean with no shoes. I stepped on something sharp but didn t realize it until the next day. As soon as I noticed something was in my foot, I removed it. My foot started to puss and swell. I once again thought nothing of it. Now today, my foot is painful, pussing, has a red bump and has now developed a red line that s going up my foot. I am slightly dizzy and experiencing hot/cold flashes. What could this be?