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You might need just one medication or a combination so it’s best to consult your doctor to find out what would be most effective in your case.
Antihistamines are usually effective at treating itching, sneezing and watery eyes, but they may not help with clearing a blocked nose. When you know you’re likely to be exposed to an allergen, such as mowing the lawn, taking an antihistamine beforehand will provide better protection.
Corticosteroids have an antiinflammatory effect and so prevent symptoms. Your GP may prescribe corticosteroid nasal sprays or drops if: » You have persistent hay fever that doesn’t respond to antihistamines » You mainly have a blocked nose.
Nasal decongestants reduce the swelling of the blood vessels in your nose, which makes breathing easier. They shouldn’t be used for longer than seven days because they may cause irritation in your nasal passages and make congestion worse long term.