6K views · 120 reactions | Most side effects of the #COVID19 vaccine are mild and only last for a short time. GP Dr Charles Esene explains what to do if you experience side effects  Contact your GP if you have a headache for more than four days after your vaccination. More: https://www.nhs.uk/conditions/coronavirus-covid-19/coronavirus-vaccination/coronavirus-vaccine/ | Department of Health and Social Care - DHSC | Facebook