I'm Suffering From Urticaria Since I Was Pregnant Last Year,

I'm suffering from urticaria since I was pregnant last year, now my baby is seven months old and I have red itchy pumps all over body.i take dewrming tablets but of no use. Now I have to take levocetrazine after every 48 hours. My thyroid test is ok . During my pregnancy I was detected with stone in my left kidney, but I never bothered for dat. Plz suggest me the way out. I'm nursing mother. I m in depression. Plz help me. I can't live with dis.