I've been itching for a couple of weeks now, and there are no rashes anywhere, but my whole body's itchy along with my scalp, and I have a couple of bumps in a few places. (legs, hips, and lower back.) when I itch the area that's itchy it turns red and gets puffy and gets white welt type things that itch that are puffy, but it all goes away after a half hour, but gets itchy again later. It's the worst at night and it's the worst on my back, neck, and arms.