I have seasonal allergies and take over-the-counter medication. Is it necessary to take it every day to build up its effectiveness, or can I just take it on days when my allergies are really bad?

Our answer comes from Mark Bianchi, M.D., ear, nose and throat specialist at Yale Medical Group. 

“There are three categories of allergy pills; antihistamines, decongestants, and leukotriene inhibitors. They all work fairly rapidly. I don’t continue the first two for more than a week if they’re not working. Leukotriene inhibitors (i.e. Singulair) may have a more cumulative effect, especially in children who have large tonsils and adenoids.”

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