Seasonal allergic rhinitis, allergic rhinitis, or hay fever is common in the US when springtime comes.  This is usually because of the presence of allergens that are freed in the air after winter. “Hay” fever doesn’t mean that it is caused by hay.  This is a reaction to the various allergens that surround you. When there is an inflammation of the sinus lining as well, this is called rhinosinusitis

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