What should you know about medication to stop a runny nose?

A clear, watery discharge with sneezing or itchy eyes can occur with allergic rhinitis, including reactions to house dust mites or pets. A runny nose with sore throat, cough, fever, or body aches may occur with a common cold, influenza, or COVID-19. Facial pressure, blocked drainage, or symptoms that persist can point towards sinusitis. Antihistamines may help allergy symptoms, while saline rinses can clear mucus; some nasal products are only suitable for short use and may worsen blockage if overused.

Read the active ingredients on combination cold products to avoid taking the same medicine twice. Ask a pharmacist about an antihistamine or nasal spray if allergy is likely, especially if you have glaucoma, prostate symptoms, pregnancy, or other regular medicines. Use a clean saline spray or rinse as directed, drink fluids, and avoid smoke or known triggers. Do not use antibiotics for a simple viral illness unless a clinician prescribes them.

Seek urgent help for severe breathing difficulty, swelling of the lips or tongue, confusion, or a rapidly worsening allergic reaction. Arrange medical advice for high fever with marked illness, chest pain, dehydration, severe facial pain or swelling, or symptoms that are not improving. A one-sided, foul-smelling, or blood-stained discharge also deserves assessment, particularly after an injury.

Ask whether the pattern fits allergic rhinitis, a cold, influenza, COVID-19, or sinusitis; which product suits your age and other conditions; and how long to use it. Mention wheezing, pregnancy, high blood pressure, eye problems, and every medicine you take before choosing a decongestant.