When you have the COVID vaccination your immune system responds producing antibodies to the COVID-19 virus. Due to the immunosuppressive effects of a steroid injection having a injection prior to or shortly after your COVID vaccination will reduce your immune systems response to the vaccination making the vaccine much less effective and increasing your risks of catching COVID-19. To prevent this effect on your immune system we will not be able to undertake a steroid injection either 2 weeks before or 4 weeks after your COVID vaccinations.