What should you know about very runny nose?

A very runny nose usually reflects a viral illness, allergy or nasal irritation, and its accompanying symptoms guide next steps. Clear discharge with sneezing and itchy eyes fits Allergic Rhinitis, Pet Allergy or House Dust Mite Allergy. A Common Cold, Influenza or COVID-19 may add cough, fever, aches or tiredness. Sinusitis more often causes blocked nose, facial pressure and thicker discharge.

A sudden watery flow can follow an irritant, temperature change or allergy trigger. Discharge with repeated sneezing and itchy eyes points towards an allergic response, while sore throat, cough or fever can accompany infection. Facial pain, reduced smell and symptoms that worsen after initial improvement may need review for Sinusitis. The colour of mucus alone does not establish whether an illness is bacterial.

Drink fluids, rest, wash your hands and use tissues once before discarding them. Saline nasal spray or a salt-water rinse may clear irritants; use sterile, distilled or previously boiled and cooled water for a rinse. Reduce exposure to smoke, dust and known allergens. A pharmacist can advise on antihistamines or other treatments, especially during pregnancy or if you have glaucoma, high blood pressure or take regular medicines.

Seek urgent help for trouble breathing, swelling of the lips or tongue, severe facial swelling, confusion or a serious allergic reaction. Arrange medical review for a runny nose after a head injury, one-sided discharge that is bloody or foul-smelling, severe facial pain, dehydration, or symptoms that persist or keep returning. A fever with marked weakness also warrants prompt advice.

Does this pattern fit an allergy, infection or Sinusitis? Would an antihistamine or saline treatment suit me? Should I test for COVID-19? Which symptoms mean I need an examination?