Runny nose

A runny nose, also known as rhinorrhea, is when mucus drips from your nose. It can be caused by various factors, including:

• Cold or flu: Viral infections often lead to a runny nose as your body tries to clear out the virus.
• Allergies: Pollen, dust, pet dander, or other allergens can trigger a runny nose.
• Sinus infections: Inflammation in the sinuses can cause mucus to flow.
• Irritants: Strong smells, smoke, or pollution can also lead to a runny nose.

A runny nose is usually not serious and often goes away on its own. You can manage it with rest, staying hydrated, and using over-the-counter medications, like antihistamines for allergies or decongestants for colds. If it lasts a long time or is accompanied by other severe symptoms, it’s a good idea to see a doctor.