If you have been experiencing a sore throat for 5 days, it is important to take it seriously and seek medical advice. You can visit a healthcare website recommended by Swiss authorities to assess your symptoms and determine if you need to see a doctor. It is also advisable to call a healthcare hotline and follow their guidance on where to get tested for COVID-19, either upon your return to Quebec or while still in Costa Rica. It is crucial to prioritize your health and follow proper protocols to ensure your well-being.