Objective: To provide the allergist information regarding the recognit
ion, diagnosis, classification, and management of headaches. Data Sour
ces: Literature and relevant articles pertaining to various types of h
eadache are reviewed and the clinical experience of the authors is pre
sented.Conclusions: After reading this article, the allergist should k
now the various causes of headache, recognize the warning signs of ser
ious neurologic disease, and determine whether allergy or adverse food
reactions are playing a role.