How long does covid tongue last?

People describe a coated or furry surface, soreness, swelling, ulcers, altered taste or patches that look different from usual. Dry mouth, fever, reduced eating and mouth breathing during COVID-19 can irritate the tongue. A tongue change can also have another explanation, such as thrush, a medication effect or a dental problem, so appearance alone cannot identify its cause.

Changes in taste or smell may occur alongside COVID-19. If fatigue, joint pain, low mood or difficulty concentrating continue after the acute illness, discuss the pattern with a clinician because ongoing symptoms may fit Long COVID.

Drink regularly, choose soft foods if chewing is uncomfortable, and rinse gently with plain water after eating. Brush teeth and the tongue softly with a clean toothbrush, but do not scrape sore areas or apply household substances. Avoid smoking, alcohol-based mouthwash and foods that sting, such as very spicy or acidic items. A pharmacist or dentist can advise on suitable relief if ulcers or soreness are troublesome.

Arrange medical or dental advice if the change is not settling, keeps returning, or makes eating and drinking difficult. Seek urgent help for swelling that affects breathing or swallowing, sudden severe tongue swelling, heavy bleeding, dehydration, or confusion. A clinician may inspect the mouth and review medicines, hydration and other symptoms.

Could this tongue change be caused by COVID-19, thrush, a medicine or a dental issue? What signs should prompt a review? Is any mouth rinse or treatment appropriate for my symptoms?