Nammu, I had hives on the bottom of my feet too. The palms of my hands, and feet itched the worst. And they hurt like hell. My face and lips swelled. My GI track was affected and I could hardly swallow. Everything inside me felt closed up and itchy inside too. My mouth itched so bad. I was vomiting, it was agony. Good news is I think the prednisone is working. I'm so sorry you went through this, it's no fun at all.