
Nasal congestion Causes - Mayo Clinic
Dec 18, 2025 · Some people have noses that are stuffy and run all the time without a known reason. This is called nonallergic rhinitis or vasomotor rhinitis. A polyp, an object such as a small toy stuck in …
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 …
Blocked tear duct - Symptoms & causes - Mayo Clinic
Aug 18, 2025 · Blocked tear ducts can happen at any age, from birth to adulthood. Causes include: Blockage at birth. Many infants are born with blocked tear ducts. The tear drainage system may not …
Pseudoephedrine (oral route) - Side effects & dosage
Feb 1, 2026 · Pseudoephedrine may be more likely to cause side effects in infants, especially newborn and premature infants, than in older children and adults. Do not give any over-the-counter (OTC) …
Mammary duct ectasia - Symptoms & causes - Mayo Clinic
Sep 5, 2025 · Mammary duct ectasia is a noncancerous breast condition that affects the milk ducts. Learn the signs and symptoms and when treatment might be needed.
Mastitis - Symptoms and causes - Mayo Clinic
Aug 13, 2024 · Mastitis is swelling and redness, called inflammation, of breast tissue. It sometimes involves an infection. Besides causing swelling and redness, mastitis causes breast pain and …
Carotid artery disease - Symptoms and causes - Mayo Clinic
Jul 24, 2025 · Carotid artery disease occurs when fatty deposits, called plaques, clog the blood vessels that deliver blood to the brain and head (carotid arteries). These clogged blood vessels increase the …
Plugged ears: What is the remedy? - Mayo Clinic
Apr 24, 2024 · Plugged ears are usually a mild, temporary problem. Learn about potential causes and treatments.
Earwax blockage - Symptoms & causes - Mayo Clinic
Sep 20, 2025 · Earwax blockage happens when earwax, called cerumen, builds up in your ear or becomes too hard to wash away naturally. Earwax is a helpful and natural part of your body's …
Coronary artery disease - Symptoms and causes - Mayo Clinic
Jun 14, 2024 · Coronary artery disease often develops over many years. Symptoms are from the lack of blood flow to the heart. They may include chest pain and shortness of breath. A complete blockage …