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  1. Acute sinusitis - Symptoms and causes - Mayo Clinic

    Aug 29, 2023 · Acute sinusitis is most often caused by the common cold. Signs and symptoms may include a blocked and stuffy (congested) nose, which may block your sinuses and prevent drainage …

  2. Bronchitis - Symptoms and causes - Mayo Clinic

    Jul 31, 2024 · The lining of the tubes that carry air to and from your lungs is inflamed. Signs and symptoms include cough, mucus, fatigue and chest discomfort.

  3. COPD - Symptoms and causes - Mayo Clinic

    Aug 30, 2024 · More mucus or changes in mucus color or thickness. Fever. When to see a doctor Talk with your doctor or other healthcare professional if your symptoms don't get better with treatment or if …

  4. Cold symptoms: Does drinking milk increase phlegm?

    Jun 13, 2023 · Colds mean extra thick and sticky mucus, but dairy milk doesn't make phlegm worse.

  5. Mucus in stool: A concern? - Mayo Clinic

    May 30, 2024 · A small amount of mucus in stool is usually nothing to worry about. Stool often contains a small amount of mucus. Mucus is a jellylike substance that your intestines make to keep the lining …

  6. Chronic sinusitis - Symptoms and causes - Mayo Clinic

    An infection, growths in the sinuses, called nasal polyps, or swelling of the lining of the sinuses can cause chronic sinusitis. Symptoms might include a blocked or stuffy nose that makes it hard to …

  7. Guaifenesin (oral route) - Side effects & dosage - Mayo Clinic

    Feb 1, 2026 · Guaifenesin is used to help clear mucus or phlegm (pronounced flem) from the chest when you have congestion from a cold or flu. It works by thinning the mucus or phlegm in the lungs.

  8. Atelectasis - Symptoms and causes - Mayo Clinic

    Nov 8, 2023 · Mucus plug. A mucus plug is a buildup of sputum or phlegm in your airways. It commonly occurs during and after surgery because you can't cough. Drugs given during surgery make you …

  9. Proctitis - Symptoms & causes - Mayo Clinic

    Sep 20, 2025 · Proctitis is irritation and swelling of the muscular tube connected to the end of the colon, called the rectum. Stool passes through the rectum on its way out of the body. Proctitis can cause …

  10. Asthma - Symptoms and causes - Mayo Clinic

    Mar 8, 2025 · Asthma is a condition in which your airways narrow and swell and may produce extra mucus. This can make breathing difficult and trigger coughing, a whistling sound (wheezing) when …