asthma and allergy treatment 1 articles:
A hypersensitive reaction to pollen. While grass pollens are generally the most common cause of hay fever (seasonal allergic rhinitis), other pollen types are also important. These include tree pollens such as alder ,hazel ,birch ,beech ,cypress ,pine , chestnut and poplar ,and weed pollens such as plantain ,mugwort and ragweed. The relative importance of the kinds of pollen that can cause hay fever varies between different climatic and vegetation zones. For example, ragweed pollen, although very common in North America, is present in Europe only in the French Rho^ne valley and some areas of Eastern Europe, while the pollen most associated with seasonal allergy in Mediterranean regions is the olive tree. A person allergic to one pollen is generally also allergic to members of the same group or family (e.g. Betulaceae).
asthma and allergy treatment 2 articles:
Allergic Rhinitis: Seasonal allergic rhinitis (more commonly known as hay fever) is mainly an allergy caused by outdoor allergens, such as tree, grass and weed pollens, as well as some mold spores. If you sneeze and have a runny or stuffy nose during the spring, summer or fall allergy seasons, you may have hay fever. Hay fever is the most common type of allergy problem, and symptoms include sneezing, itching, runny or stuffy nose, and red, watery eyes.
asthma and allergy treatment 3 articles:
A hypersensitive reaction to pollen. While grass pollens are generally the most common cause of hay fever (seasonal allergic rhinitis), other pollen types are also important. These include tree pollens such as alder ,hazel ,birch ,beech ,cypress ,pine , chestnut and poplar ,and weed pollens such as plantain ,mugwort and ragweed. The relative importance of the kinds of pollen that can cause hay fever varies between different climatic and vegetation zones. For example, ragweed pollen, although very common in North America, is present in Europe only in the French Rho^ne valley and some areas of Eastern Europe, while the pollen most associated with seasonal allergy in Mediterranean regions is the olive tree. A person allergic to one pollen is generally also allergic to members of the same group or family (e.g. Betulaceae).
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