Loss of smell during a cold

A cold can inflame the lining of the nose and create mucus that blocks scent molecules from reaching the smell area. This can make food taste dull and make it harder to notice smoke or spoiled food. The symptom may appear alongside sneezing, runny or blocked nose, sore throat and cough. If smell is absent despite clear nasal breathing, or if the change continues well beyond the cold, another explanation such as COVID-19, allergic rhinitis or chronic sinusitis may need consideration.

Give your body time to recover, rest and take fluids according to your usual health needs. Saline nasal care may ease mucus and dryness when used safely; ask a pharmacist if you are unsure how to prepare or use it. Avoid smoke and harsh fragrances. Use visual checks for food and confirm that smoke and gas alarms work. Keep a brief symptom diary with the cold symptoms, nasal blockage and smell changes, which can make a later consultation more useful.

Book an appointment if the cold has improved but smell remains reduced, if episodes repeat, or if there is ongoing facial pressure, discharge or one-sided blockage. Seek urgent care for breathing difficulty, swelling near the eye, confusion, severe headache or a smell change after head trauma. Emergency help is needed for severe breathing problems or inability to stay safe.

Does the timing suggest a cold-related change? What signs would point to sinus disease or allergy? Which nasal treatments are suitable? How should I protect myself from household hazards while smell is reduced?