What should you know about metallic taste in mouth covid how long does it last?

COVID-19 can alter smell and taste, and changes in smell can make foods seem metallic, bitter or unusually bland. A blocked nose, dry mouth, medicines, reflux or oral problems can also affect flavour. A metallic taste is not specific to COVID-19, so it does not confirm an active infection or explain every ongoing symptom. Notice whether it began with other features such as [Loss of Smell](/symptoms/loss-of-smell/) or [Loss of Taste](/symptoms/loss-of-taste/), and whether it is improving, stable or worsening. Ongoing changes alongside tiredness, concentration problems or other symptoms may fit a post-viral pattern such as [Long COVID](/conditions/long-covid/), but a clinician should consider other causes.

Brush your teeth and tongue gently, keep hydrated, and rinse your mouth with water after meals. Choose fresh foods with varied textures and use herbs or mild seasonings if they are comfortable; avoid foods that trigger nausea. Do not stop prescribed medicines without advice, even if you suspect one is changing taste. Check your mouth for soreness, coating or dental problems, and arrange a review if the taste persists, affects eating, or is accompanied by weight loss. Smell training may be discussed when smell remains altered, but it should be tailored to your situation.

Seek urgent help for difficulty breathing, chest pain, confusion, fainting, severe dehydration or sudden neurological symptoms. Arrange prompt medical review for mouth ulcers that do not heal, marked thirst with frequent urination, repeated vomiting, or inability to eat and drink. Book routine care for a taste change that is persistent, worsening or unrelated to a recent illness. [COVID-19](/conditions/covid-19/) testing and infection-control advice depend on your current symptoms and local guidance.

Ask: Could my medicines, mouth or nose explain this taste? Does my smell need testing? What can I do if eating becomes difficult? Should persistent symptoms be assessed as [Long COVID](/conditions/long-covid/)?