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

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

    The U.S. Food and Drug Administration (FDA) announced that it plans to ban products containing phenylephrine, an ingredient found in many over-the-counter (OTC) oral cold and flu medications.

  5. 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.

  6. Treatment of influenza - Wikipedia

    en.wikipedia.org/wiki/Treatment_of_influenza

    Stay at home; Get plenty of rest; Drink a lot of liquids; Do not smoke or drink alcohol; Consider over-the-counter medications to relieve flu symptoms; Consult a physician early on for best possible treatment [2] Warning signs are symptoms that indicate that the disease is becoming serious and needs immediate medical attention. These include ...

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

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

    On Oct. 7, the FDA authorized the first over-the-counter home flu and COVID-19 combination test outside of emergency use authorization, which can detect SARS-CoV-2 (the virus that causes COVID-19 ...