Seasonal allergies develop when the body’s immune system overreacts to something in the environment, usually during spring, summer or fall when certain plants pollinate. Did you know that seasonal allergies can be prevented by taking an antihistamine before symptoms start? Antihistamines work better if you start using them daily before you expect to be exposed to the allergen. Many of the newer antihistamines are once a day dosing. If one antihistamine proves to be ineffective, switching to another one may help. All antihistamines can be sedating if taken in higher doses, but the newer antihistamines are generally fine if taken as directed.

Catherine McCann, BScPharm, Medicine Shoppe Pharmacy, MedicineShoppePharmacy.ca