Geographic tongue

For me it is salty food that really makes geographic tongue worse.

I have found that strong alcohol, like that found in some mouthwash can cause geographic tongue to flare up for me

Geographic tongue is a harmless condition where the surface of the tongue has red, smooth patches with white borders. These patches move around over time, which is why it's called "migratory." The exact cause isn't clear, but it may be linked to genetics, stress, or certain foods. It usually doesn’t need treatment, though it can cause discomfort, especially with spicy foods. Maintaining good oral hygiene and avoiding triggers can help manage it. It’s best to see a doctor if you're concerned.