How long does losing taste and smell last?

A blocked or inflamed nose can stop scent molecules reaching smell receptors, which can make food seem bland. Viral illnesses such as the common cold or COVID-19 can affect these senses even when congestion is mild. Some people notice distorted smells or gradual return rather than a sudden change.

Treat nasal symptoms only with advice suited to the cause, and avoid inserting objects or unprescribed products into the nose. Check food dates carefully because smell may not warn you about spoilage; test smoke and gas alarms and use safe cooking habits. Strong flavours, varied textures and warm foods may make meals more enjoyable while taste is reduced.

Arrange an assessment if the loss is not improving, keeps returning, follows a head injury, or comes with persistent nasal blockage, facial pain, fever or neurological symptoms. Seek urgent help for sudden loss with weakness, confusion, trouble speaking, severe headache or breathing difficulty.

Ask what cause is most plausible, whether your nose and ears need examination, and when persistent symptoms should be reassessed. You can also ask whether smell training is appropriate and which medicines could be affecting your senses.