question: Hi for the past three weeks I have had intense itchy skin. once I scratch I get raised bumped like a big mosquito  bite that last for several days and itch intensely. they wake me up at night and I scratch until I break the skin. they are on my hands, fingers, around my wrists, around elbows, around my shoulders, around my knees, and arround my ankles, and on my feet and toes. My husband has no rash or itches and my cats are not scratching themselves. I have found no bed bugs or fleas. I live in Arizona. What could this be?