What should you know about severe sneezing and runny nose?

Allergic rhinitis often causes repeated sneezing, clear watery discharge, an itchy nose and itchy or watery eyes, especially after exposure to a trigger. House dust mite allergy and pet allergy are possible examples. A common cold, influenza or COVID-19 may instead bring sore throat, cough, tiredness or fever. Sinusitis can follow congestion and may add facial pressure or thicker mucus. Dry air, smoke, fragrances and other irritants can also provoke symptoms without an infection.

Limit known triggers, keep smoke away and consider ventilation when indoor air feels irritating. Saline spray can help clear the nose. If allergy is suspected, a pharmacist can explain whether an antihistamine or nasal treatment suits you; use products as directed and avoid duplicating ingredients. Rest and drink fluids if you feel unwell. Consider testing or staying away from vulnerable people when an infectious illness is possible, following current local advice.

Arrange a review if symptoms are severe, persistent, repeatedly disrupting sleep, or associated with facial pain, fever or breathing problems. Seek urgent help for swelling of the lips, tongue or throat, wheezing, faintness or difficulty breathing, as these may signal a serious allergic reaction. Also seek prompt advice for dehydration, confusion or a rapidly worsening illness.

Ask whether the timing suggests allergy or infection, whether testing is useful, and which nasal or allergy medicines fit your age and other medicines. Mention pets, bedding, workplace exposures, fever, cough and any breathing symptoms.