London: New research shows that regardless of medication and other allergies for grass pollen, hay fever symptoms are worse in the first half of spring than in summer.Symptoms of hay fever such as a running nose, sneezing and itchy eyes are caused by an allergy to grass pollen, bringing misery to sufferers through spring and summer.Worldwide, there are over 10,000 species of grass and most of these species are able to cause symptoms in people who have hay fever. The different species release their pollen sequentially, so that for the sufferer, hay fever (also called `seasonal allergic rhinitis`) can last for the whole three months when grasses are flowering.Researchers from Leiden University Medical Centre (LUMC) in the Netherlands compared daily pollen counts with daily symptoms reported by hay fever sufferers (with a positive skin test to grass pollen). LUMC`s Letty de Weger, who led the research, explained: "It is possible that sufferers report their symptoms as milder later in the season because they get used to their hay fever, or that the pollen from late flowering species is less allergenic than pollen from early flowering grass."
Book from RAW, more damage awaits UPA
Pak journalist Hamid Mir shot at in Karachi
Modi, then and now: 13 years of political journey
Stop govt from appointing new Army chief: BJP to Election Commission