i live in Chicago. my hands easily get cold. when they get cold. it get itchy and small round masqito bite swelling appeard on my hand then half of finger get swell up. or if its on back of my palm swell up to biggest dollars coin one with bell on it. or if its too cold I get all over my body except from my stomach to my neck. I m 30 male. 140lb 5.8 . small 2inch scorpion bite me on my finger when I was 10. and my finger swell up that night. didn t do any medication for that. I got positive when they did TB TEST MY ARM. I took medication for 9 month. 1 everyday.