For COVID-19 vaccination, you will need a COVID-19 vaccination certificate for previously given COVID-19 vaccinations. You can print or download the COVID-19 vaccination certificate by logging in to the kanta.fi service, in Finnish, (Terveystiedot > Rokotukset)., Clothing: wear a short-sleeve shirt for easy administration of the vaccine into the upper arm., After vaccination, please stay in the waiting room for at least 15 minutes so that we can help you if you have any reactions to the vaccine., You may experience local symptoms at the injection site such as soreness, redness, feeling hot and swelling as a side effect of the vaccination., Other common general symptoms associated with the vaccination include fever, muscle ache, headache, fatigue, irritability and chills, which will subside relatively quickly. Local swelling of the lymph nodes may also occur. These typical symptoms are more common after the second dose of the vaccine. Local and general symptoms usually appear within a couple of days of vaccination. They will subside in a few hours or days. They can be treated with fever and pain medication, primarily paracetamol in accordance with the symptom.