hive itch but no allergies

i have bn hving itch since d day i arrived in holland 2 wks ago. it got worse day by day. allergy test shown that i have no allergy to food. skin specialist confirmed i have Hive but reacting to no allergy. i was given 3 types of medicine which i nd to take in a course of 30 days, 10 days each new medicine to see which works for me.  today is my 7th day taking Fexofenadine. i nvr got any better but to me, its worse. it spreads from my calf, to my upper thigh, then behind my knees, lower and upper arms, front neck to the back of my neck, and ystrday started to my abdomen. it was horrible and didnt sleep at all at nite. D first days, i monitored that, i only got the itch when i was at home n only had itch during nite time. and then 2 days ago, i also had slight itch outside but very minimal. I really want this to stop immediately. If u have anything similar please do share w me how things get better or if there is other ways that i cld find out how to have this itch out of my body. ..