Allergic rhinitis, also called hay fever or seasonal allergies, makes the lives of 40 million to 60 million Americans miserable every spring. The tree pollen season is upon us and it can last until mid-May, which is also when allergies from pollen and grass usually kick. There is no cure for spring allergies, but there are several ways in which you can manage the symptoms and alleviate how they affect you. Factors affecting the pollen counts and allergy seasons are related to climate change, Dr. Manav Segal from Chestnut Hill Allergy & Asthma Associates in Philadelphia. “Global warming is resulting in shorter, warmer winters, and changing precipitation patterns. The result is earlier spring season, higher pollen counts, more pollinating vegetation, and a longer growing season.” It will also result in more people feeling the effects, he adds.