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  1. Runny nose Causes - Mayo Clinic

    Apr 7, 2023 · Anything that irritates the inside of the nose can cause a runny nose. Infections — such as colds, flu or sinusitis — and allergies often cause runny and stuffy noses. Some people have noses …

  2. Runny nose - Mayo Clinic

    Apr 7, 2023 · A runny nose is having fluid run out of the nose. The fluid can range from thin and clear to thick and yellow-green. The fluid might drip or run out of the nose, down the back of the throat, or …

  3. Common cold - Symptoms and causes - Mayo Clinic

    May 24, 2023 · This common illness of the nose and throat causes a stuffy or runny nose, sore throat, and cough.

  4. Runny nose When to see a doctor - Mayo Clinic

    Apr 7, 2023 · Call your health care provider if: Your symptoms last more than 10 days. You have a high fever. What comes from your nose is yellow and green. Your face hurts or you have fever. This may …

  5. Nonallergic rhinitis - Symptoms & causes - Mayo Clinic

    Mar 14, 2023 · Symptoms Nonallergic rhinitis symptoms often come and go year-round. Your symptoms might include: Stuffy or runny nose. Sneezing. Mucus in the throat. Cough. Nonallergic rhinitis most …

  6. Acute sinusitis - Symptoms and causes - Mayo Clinic

    Aug 29, 2023 · Learn the latest ways to treat and prevent the stuffy nose and head pain that can come with this condition.

  7. What to do if you get a respiratory infection: A Mayo Clinic physician ...

    Dec 30, 2024 · Flu symptoms include sore throat, runny or stuffy nose, fever, body aches and fatigue. These symptoms may overlap with other illnesses, like the common cold, but key differences exist.

  8. Nonallergic rhinitis - Diagnosis & treatment - Mayo Clinic

    Mar 14, 2023 · Many things can trigger this problem. Learn how to get relief from your runny, stuffy nose.

  9. Mayo Clinic Minute: Help for a sinus infection

    Feb 11, 2025 · If you catch a cold or upper respiratory infection and it lingers long enough, it may turn into a sinus infection known as sinusitis. Symptoms can include a runny nose and nasal congestion …

  10. COVID-19, cold, allergies and the flu: What are the differences?

    Oct 22, 2025 · Currently, they are runny or stuffy nose, headache, and sore throat. But there are many other possible symptoms, such as fever, a cough and tiredness. Many people with COVID-19 have …