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. COPD can make it http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=2412854