
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 …
Mucus in stool: A concern? - Mayo Clinic
May 30, 2024 · Mucus is a jellylike substance that your intestines make to keep the lining of your colon moist and lubricated. But you should talk to a healthcare professional if you notice an increased …
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.
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 …
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 …
Sore throat - Symptoms & causes - Mayo Clinic
Apr 12, 2025 · Other symptoms might include hoarseness, trouble swallowing, noisy breathing, a lump in the neck and bloody mucus. Rarely, an infected area of tissue, also called an abscess, in the throat …
Common cold - Symptoms and causes - Mayo Clinic
May 24, 2023 · The mucus from your nose may start out clear and become thicker and yellow or green. This change is normal. Most often, it doesn't mean that you have a bacterial illness. When to see a …
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.
Chronic cough - Symptoms and causes - Mayo Clinic
Oct 29, 2024 · A cough that happens once in a while is common. It helps clear irritants and mucus from your lungs and prevents infection. But a cough that lasts for weeks is usually due to a health …
Laryngitis - Symptoms & causes - Mayo Clinic
Sep 20, 2025 · The spaces inside the nose and head become inflamed, and too much mucus drips into the back of the throat. Less common causes of chronic laryngitis include infections from bacteria, …