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  2. Which Allergy Medicine Is Actually Most Effective? - AOL

    www.aol.com/lifestyle/allergy-medicine-actually...

    Zyrtec works by blocking the histamine 1 receptor in your body, explains David Corry, MD, professor of allergy medicine at Baylor College of Medicine in Houston. “Histamine is a chemical that is ...

  3. Cetirizine - Wikipedia

    en.wikipedia.org/wiki/Cetirizine

    Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6]

  4. Antihistamine - Wikipedia

    en.wikipedia.org/wiki/Antihistamine

    Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]

  5. These Cold & Flu Medicines Contain an Ingredient the FDA ...

    www.aol.com/cold-flu-medicines-contain...

    Phenylephrine is a medication that’s been used to relieve nasal congestion caused by colds, allergies, and hay fever, per the U.S. National Library of Medicine.

  6. H1 antagonist - Wikipedia

    en.wikipedia.org/wiki/H1_antagonist

    H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.

  7. Is it COVID-19, a cold or the flu? Your guide to seasonal ...

    www.aol.com/lifestyle/covid-19-flu-colds-back...

    Fall allergies. Flu. ... runny or stuffy nose and cough are all symptoms that the flu (aka influenza) shares with other respiratory viruses. ... About 80% of children who died of the flu last year ...

  8. Cold medicine - Wikipedia

    en.wikipedia.org/wiki/Cold_medicine

    It also includes drugs which are marketed as cough suppressants or antitussives, but their effectiveness in reducing cough symptoms is unclear or minimal. [ 1 ] [ 2 ] [ 3 ] While they have been used by 10% of American children in any given week, they are not recommended in Canada or the United States in children six years or younger because of ...

  9. The Type of Cough Medicine You Take Could Make a Big ... - AOL

    www.aol.com/lifestyle/type-cough-medicine-could...

    They'll work if you have a dry cough, mucus coming up or tickle in your throat. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...