Although the best way to treat hay fever is to minimize exposure to the allergens, it is almost impossible to completely avoid airborne allergens such as pollen. There are many medicines, both prescription and nonprescription, to treat hay fever and its symptoms. Nonprescription decongestant pills, such as pseudoephedrine ( Sudafed , Afrin and other brand names), can be used to relieve nasal congestion. Decongestant nasal sprays can give relief for a few days but they can cause congestion to get worse if they are used for more than three days.
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