If we could tweak our bodies we wouldn’t want to eliminate IgE. But we’d want to have it produced only when a recognizer complex finds thar be worms.
I was being punchy. “The pathway of B cell differentiation with respect to the nature and location of potential IgE+ memory cells as well as long-lived IgE producing plasma cells in allergy is still not completely understood” [1]. We do know, however, that “IgE is continuously produced to maintain constant IgE levels in blood,” and that Th2 cells can increase that baseline.