Runny nose can be caused by anything that irritates or inflames the nasal tissues. Infections — such as the common cold and influenza — allergies and various irritants may all cause a runny nose. Some people have a chronically runny nose for no apparent reason — a condition called nonallergic rhinitis or vasomotor rhinitis (VMR).

Less commonly, runny nose can be caused by polyps, a foreign body, a tumor or migraine-like headaches.

Causes of runny nose include:

  1. Acute sinusitis
  2. Bright lights
  3. Chronic sinusitis
  4. Churg-Strauss syndrome
  5. Cluster headache
  6. Cold temperature
  7. Common cold
  8. Decongestant nasal spray overuse
  9. Deviated septum
  10. Drug addiction
  11. Dry air
  12. Dust mite allergy
  13. Food allergy
  14. Hay fever
  15. Hormonal changes
  16. Influenza (flu)
  17. Latex allergy
  18. Lodged object
  19. Medications
  20. Milk allergy
  21. Mold allergy
  22. Nasal polyps
  23. Nonallergic rhinitis
  24. Occupational asthma
  25. Other infections
  26. Peanut allergy
  27. Perfume
  28. Pet allergy
  29. Pregnancy
  30. Respiratory syncytial virus (RSV)
  31. Shellfish allergy
  32. Soy allergy
  33. Spicy foods
  34. Spinal fluid leak
  35. Tobacco smoke
  36. Wegener's granulomatosis
  37. Wheat allergy

Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.

Mar. 27, 2013