Grass allergy is one of the more common type of allergies which affects persons having its histories during the spring and summer seasons. The grass allergies are related to hay fever as indications and causes are the same. If you have a grass allergy, you should learn and understand how to live with this allergy in order to enjoy being outdoors or sitting in your garden. It's about quality of life. Symptoms of the allergic reaction Allergy take place when your body’s immune system over reacts to a substance that it sees as a potential health danger. Commonsymptoms of grass allergies are sneezing, watery eyes, and runny nose, what is also called rhinitis. Rhinitis is a condition in which the lining of the nose, back of the mouth and throat is inflamed. The allergic rhinitis is a very common condition that many individuals suffer as a consequence of grass, dust or other airborne particles. This rhinitis is caused by an increase in histamine, and this is normally caused by airborne allergens. Moreover, many people with pollen allergies also suffer from other types of allergies. Grass - an allergen Grass pollen was detected for the first time as possible trigger of periodic hay fever in late 19th century. There are more than one thousand varieties of grass but only a few causes an allergic reaction which could make it difficult to diagnos a grass sensitivity without proper examination. Grass-like plants are among the most versatile life forms on earth. Plants having grass-like structures have existed for millions of years. Sadly, for some of us this makes it pretty hard to avoid exposure to this type of pollen.