

Hello,
I never had hives in my life until last month. On April 9–10 I ate a hamburger and during the night my right leg started itching and hives appeared. At first they were only on one leg, then both legs the next day, and after a few days they spread to my whole body.
A few days later I got a bad cold that lasted about a week with very blocked ears. The cold went away but the hives stayed.
I tried loratadine — it helped the first day but not after. Then a dermatologist prescribed levocetirizine. It helped the first day, less the second, and stopped working by the third.
Now I’m on 40 mg prednisone. It helped the first two days, but today (day 3) I’m having a big flare again.
I don’t know what to do anymore. Has anyone experienced something similar?