Itching problem

Patient: I m suffering form serious itching on my whole body from 2 years, doctors give me medicine (cetirizine) it helps only 2 days and after that it again come and make my whole day and night disturbed. so please help me to free me from this dangerous disease. the symptoms are like if itching on my any part of body there is red and like little little swelling on every where.so please help me doctor.

Doctor: