Past allergy medicines could only neutralize or suppress one or other of these substances, while the anti-IgE Chang extracted actually blocks the allergy mechanism at its source, binding to IgE before the allergens can, thereby preventing an allergic reaction.
過去治療過敏的藥物都只能中和或抑制其中一種致病物質，而他所萃取的 Anti-IgE，則是從源頭阻斷過敏機制，搶在過敏原之前與 IgE 結合，藉此避免過敏反應的發生。