Side-effects of steroid injections are very unlikely but occasionally people notice a flare-up of pain in the injected area within the first 24 hours after the injection. This usually settles on its own within a couple of days but taking simple painkillers like paracetamol will help. The letters α and https://www.metooo.co.uk/u/672d07a3d5e0d01190f7db26