The chemical synthesis of the spices in some allergic constitution on the human body can cause all kinds of allergy, spastic cough, allergic rhinitis, conjunctivitis, urticaria, and so on.

• 而化学合成的香料在有些过敏体质的人体上可引起各种变态反应、痉挛性咳嗽、过敏性鼻炎、结膜炎、荨麻疹等。