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Hay fever or Pollinosis – Upper Respiratory Infections

by | Dec 16, 2011 | Doctor

Hay fever or pollinosis, is an acute seasonal allergic reaction to the air-borne pollens. Hay fever can occur during the spring as a reaction to the tree pollens such as oak, elm, maple, alder, birch and cottonwood. During the summer grass and weed pollens are the...