Types of Seasonal Allergies
Seasonal allergies usually occur in the spring, summer, or fall. During these seasons, trees and grass pollinate, which can cause some people to sniffle, sneeze, and itch.
Common triggers for seasonal allergy symptoms in the spring and fall are:
- Grass. Certain types of grasses, such as Timothy, Johnson, and Bermuda, plus Kentucky bluegrass, produce highly allergenic pollen.
- Trees. Allergy sufferers should try to avoid certain types of trees during springtime, including oak, elm, birch, ash, hickory, poplar, sycamore, maple, cypress, western red cedar, and walnut.
- Flowers. Small flowers with little color tend to cause more pollen allergy symptoms than large, brightly colored flowers with heavy, waxy pollen.
- Mold Spores. Usually found in moist, shady areas, outdoor mold spores are so tiny, they may evade the protective mechanisms of the nose and may cause allergy symptoms such as runny nose, congestion, and sneezing.
