Increased IGE since 6 months & itching.

Good afternoon Doctor 6 months back a problem started, suddenly my whole body starts itching and after consulting a dermatologist, he prescribed teczine 5 mg. So for every two to three days iam using then itching is controlling 6 months back I did bloodtest and I find out that my IGE levels are 1500,from my childhood I have bronchial asthama, so I consulted a pulmonologist and explained about my ige levels, so along with ROTACAPS he prescribed tab odimont lc(daily one at night) So after 4 months again I check my ige levels and its reduced to 590 And I continued that odimont lc for another two months and yesterday again I gave blood and my ige levels are 800 Just 15 back i stopped odimont lc because my hair all over body is falling( why I don't know )and after taking odimont for 6 months itching is in control and again after stopping that again my full body starts to itch, so again iam taking teczine for every 2 days, why ige levels are not decreasing and why iam getting itching daily