Two nights ago I got a small cut or bug bite (I don t remember or know how I got it) on the back of my foot . It stung pretty badly, but it didn t bother me very much. The next morning I woke up to it very swollen and painful and itchy when rubbed on anything. It became so bad that I was limping that day, and couldn t wear shoes or move my foot without pain. This morning, when I woke up my foot was slightly numb and hard to feel, but now the swelling is down but itches very badly when touched. Do I need antibiotics , and is this an infection? Or just a bug bite? Thankyou.