Spring is the worst season for allergies, according to the Canadian Society of Allergy and Clinical Immunology. The biggest spring allergy trigger is pollen. Trees, grasses, and weeds release these tiny spores into the air to fertilize other plants. When they get into the nose or eyes of someone who’s allergic, they send the body’s defenses haywire. If pollen is a trigger, keep doors and windows closed to keep it out, and wear wraparound sunglasses when outside. Also, ask your doctor or pharmacist about the most appropriate allergy medications to avoid possible side effects, such as drowsiness and confusion.