Annoying On-Going Hives.......?

i broke out in hives just over 2 weeks ago....along with swollen lips, hoarse voice occasionally and joint pains....the doctor has given me medication and asked to keep a diary for 2 wks....the day after i started the medication i was covered in hives worse than previous, the second and third day it was bad but bearable, i noticed that the hives broke out in the night and eased off during the day, only to break out again at night, so i brought a new bed, allergy cover,quilt pillows etc, yet still i seem to break out in the middle of the night, i thought it had started to clear up, but today i woke up covered and more itchy than ever, my face is also covered, this was the only part of me unaffected last week, but my poor face is throbbing today, ive literally spent all day itching and watching the wealts get bigger and spread, im going back to doctor tomorrow cos its driving me mad, he said the medicine should work!....ive been hardly eating and cutting food groups but nothing works?