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. Evidence-based professional reference pages https://hahn-gustavsen.hubstack.net/steroid-igne-siparis-hakkinda-gercekler-aciga