When is the Best Time for an Allergy Medication?

What is Allergic Rhinitis? Allergic Rhinitis is the reaction of the upper airway, including the nose to allergens.  The source of the allergies can be dust, mites, spores, pollen, animal dander, and saliva. The symptoms are sneezing, runny nose, nasal itchiness, and congestion. The Circadian (Day-Night) Pattern of Allergic Rhinitis Many surveys have shown that…