Stay hydrated
Brush your teeth and tongue regularly
Use alcohol-free mouthwash
Quit smoking or vaping
Avoid very dry mouth by chewing sugar-free gum
Treat nasal congestion or allergies
Review recent medications with a doctor or pharmacist
Get tested for COVID-19 if symptoms fit
Check for sinus, dental, or mouth infections
Manage acid reflux if present
Eat a balanced diet with enough zinc and B12
Avoid very hot, very cold, or strongly irritating foods
Rest and recover if you recently had a viral illness
See a doctor if it lasts more than 2 weeks
Seek urgent care if you also have trouble breathing, swallowing, or new weakness