Acute, life-threatening symptoms? Call 144 directly.
Condition
Mouth ulcers and oral thrush: symptoms and assessment
- pain when eating, drinking or speaking
- healing usually within one to two weeks

Orientation
How urgent is it?
When in doubt, always choose the higher level.
Assessment and treatment on site. You are welcome without an appointment, too.
Book an appointmentor simply walk in
- sores that have not healed after two weeks
- very frequently recurring ulcers
- severe difficulty swallowing, or fever
- swollen lymph nodes in the neck
- a weakened immune system or ongoing chemotherapy
- a single, hard, painless spot that stays
If your symptoms are acute and life-threatening, call 144. aprioris is not an emergency department.
Overview
What you should know
Painful sores in the mouth or throat.
Mouth ulcers are small, painful breaks in the lining of the mouth and usually heal on their own. Oral thrush is a fungal infection and shows as a whitish coating. We tell the two apart and clarify whether something else is behind it.
One address for your concern
Book an appointment or come by during opening hours. And if you are unsure whether we are the right address: come anyway; we will work it out with you.
Symptoms
Typical signs
Typical signs
- ulcers: round, white-yellow sores with a red border, usually on the cheek, tongue, gum or inner lip
- pain when eating, drinking or speaking
- healing usually within one to two weeks
- thrush: a whitish, wipeable coating on tongue, cheek or palate, with red lining underneath
What happens
What happens at aprioris
Our aim: to resolve your concern directly on site. Assessment, treatment and, where needed, a prescription or certificate. If specialist care is needed, we refer you on.
We listen to your concern, examine you carefully and put the findings in context. Then we discuss what happens next with you.
Every case is reviewed and signed off by a physician, either during your visit or shortly after. Anything that needs specialist care, we refer on, prioritised by urgency and with a written report. aprioris does not dispense medication itself.
Treatment
Treatment overview
What you can do yourself
- avoid spicy, acidic and very hot food
- use a soft toothbrush
- drink enough
- keep up your oral hygiene
Services
Related services
Locations
Where we treat this
Available at 10 locations, with an appointment or as a walk-in.
AmriswilBadenBern ChristoffelHerisauLucerne NeustadtWinterthur MarktgasseZurich AlbisriederplatzZurich LimmatplatzZurich MorgentalZurich Paradeplatz
Booking
Book an appointment online
FAQ
Frequently asked questions
What should I bring?
Your health insurance card. If you take medication, a current medication list or the packaging helps. For anything to do with vaccination, please bring your vaccination record.
When should I go straight to emergency care?
Severe difficulty swallowing with fever, breathing difficulty, or rapidly increasing swelling in the mouth or throat: have that assessed immediately.
Do I need an appointment for this?
Not necessarily. You are welcome without booking during opening hours. If you book an appointment, you are seen at the agreed time. You can book online or by calling the practice.
What does the assessment cost?
aprioris is a medical practice licensed by the canton. Services covered by mandatory health insurance are billed accordingly. Your deductible and co-payment apply, as in any medical practice. Preventive services are paid for privately; prices are shown with each service.
