What causes hayfever?

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What causes hayfever?
Hay fever is also termed allergic rhinitis. Its
symptoms are like cold that includes a runny
nose, itchy eyes, congestion, sneezing, and
sinus infection. But like cold is caused by a
virus hay fever is not caused by a virus, it is
caused by a harmless substance the body defines
that allergic. See your doctor and get hay fever
treatment if your hay fever symptoms are ongoing.
Common symptoms of hay fever include Constantly
needing to clear your throat Requiring to
breathe from the mouth An itchy, runny or
blocked nose Itchy or watery eyes Continous
sneezing Headache