What kinds of trees produce allergenic pollens?
Fruit-bearing trees do not trigger allergies because they are insect-pollinating. Pollens of fruit trees are heavy and sticky, thus, they cannot be carried away by the wind. The pollens of plain looking trees are the ones that cause allergies. Trees known to produce allergenic pollens are: Oak, ash, elm, hickory, pecan, box elder, and mountain cedar. Symptoms Those with allergy to tree pollen suffer from nasal congestion, sneezing, and nasal discharge. Their eyes will start to itch or get puffy and watery, and there will be noticeable allergic shiners, or dark circles under the eyes caused by increased blood flow near the sinuses. Conjunctivitis can also develop, together with postnasal drip, mental dullness, and fatigue. The throat becomes itchy, and hoarseness and loss of voice may occur. If you have some of these symptoms, you are experiencing a case of seasonal allergic rhinitis, which is also known as hay fever. The effect of hay fever can vary among different people. Some may be
