Allergic rhinitis is a common illness suffered among US Veterans. There are medications that
help relieve allergy symptoms, including nasal steroid sprays and antihistamines. Some
patients have increase symptoms with exposure to their trigger, such as a grasses when
combined with pollution due to oxidative stress from pollution. In this study, patients with
allergic rhinitis to grass will be given broccoli sprout extract that contains an antioxidant
sulforaphane do see if there is beneficial effect in these patients.