How To Treat Severe Body Itch With Rashes?

I spent the night at my Aunt and Uncles house the other night with my daughter. Around midnight my feet started to itch. I went to lay down for bed with my daughter, and after maybe 30 minutes I woke up itching on my legs. I thought maybe it was just my pants so I took them off. Then maybe 5 minutes later my torso also began to itch, so I took my shirt off. Maybe 10 minutes later my entire body was itching so bad I couldn t get a bit of sleep. I laid down on the couch thinking perhaps it was just the bed, and needless to say, I didn t sleep at all. The itching didn t let up for 6 hours. I took a shower which made me feel a little better. I managed to get an hour of sleep before I woke up itching again. I didn t get any rash or bumps until about 1pm today. I have been itching nonstop since midnight the night before last. The weals were on my legs and very large. Covered my entire thighs. They were there for about 2 hours, at least. When I got home from work at 6 they were gone. I then got weals on the bottoms of my feet, and on my hands. I finally got them to ease up after about 2 hours. Now there on my stomach, the top of my bottom around my waist, and going up to my chest. Also some on my neck. I haven t changed soap, laundry detergent, or any unusual food.