Both together: A cold is caused by a respiratory virus while hay fever (seasonal allergic rhinitis) is an allergic reaction --without fever [despite the name]. Hay fever is triggered by pollens, mold spores, animal dander but not cold viruses. It is certainly possible to have allergies and then develop a cold simultaneously. Then you feel twice as bad...
Answered 6/23/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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