Dry up a runny nose: what to know

The nose produces extra fluid when its lining reacts to a virus, allergen or irritant. A common cold may include sore throat, cough and feeling unwell. Allergic rhinitis often presents with clear discharge, sneezing and itching after exposure to pollen, dust or animals. House dust mite allergy can be worse indoors or during sleep. COVID-19 and influenza can also cause a runny nose, with other symptoms varying between people. Sinusitis is more concerning when facial pressure, reduced smell or thick discharge accompanies the problem.

Blow your nose gently, drink fluids and use saline spray. A saline rinse can wash away mucus and irritants; use sterile, distilled or boiled then cooled water and clean the device as directed. Reduce exposure to smoke, dust, strong scents and a known allergen. A pharmacist can explain whether an antihistamine or another treatment is suitable, considering your age, pregnancy, blood pressure and other medicines. Follow the label and avoid combining products with overlapping ingredients. Rest if an infection seems likely and wash hands regularly.

Get urgent help for difficulty breathing, facial or throat swelling, confusion, severe weakness, or inability to keep fluids down. Arrange medical advice for persistent high fever, severe facial pain, dehydration, one-sided foul-smelling discharge, or symptoms that worsen after initial improvement. A runny nose after a significant head injury also needs prompt assessment.

Does the timing suggest allergy, infection or irritation? Which nasal treatment fits my medicines and health conditions? What should I monitor if the discharge changes or continues?