Can flu cause loss of taste?

Taste and smell work together when you eat. Fever, inflammation and a stuffy nose during flu can make food seem bland, even when the taste buds themselves are working. A sudden or marked loss of taste can also occur with COVID-19, so symptoms alone cannot identify the infection. A common cold may produce a similar effect. Recovery usually follows the illness as congestion and inflammation settle, but the timing differs between people.

Rest, drink enough fluid to keep your urine pale, and use simple measures recommended for flu symptoms. Saline nasal rinsing may ease congestion when used safely with clean water and the correct preparation. Choose foods with varied textures and temperatures, and avoid adding excessive salt or sugar to compensate for reduced flavour. Follow local advice about testing and limiting close contact if an infectious illness is possible. Do not use antibiotics unless a clinician prescribes them.

Seek urgent help for difficulty breathing, chest pain, confusion, severe weakness, dehydration or a rapidly worsening illness. Arrange medical advice if the taste loss persists after other flu symptoms improve, returns repeatedly, or occurs without congestion. A clinician can assess your nose, mouth, medicines and other possible causes.

Ask whether your symptoms fit flu or another infection, whether testing is appropriate, and how long altered taste may reasonably last. Mention new medicines, nasal symptoms, smoking, mouth problems and any exposure to someone with COVID-19.