Prednisone
"Severe muscle spasm in lower lumbar region, couldn't stand as I couldn't bear any weight without severe pain and would just collapse. Doctor prescribed me prednisone on a tapered prescription along with painkillers and muscle relaxants. Prednisone was fantastic within two days I was back on my feet and on sixth day managed a return eight hour flight home which I was dreading! An X-ray confirmed osteoarthritis in my lower spine. Prednisone gave me my freedom and future back. 

ps I'm writing this at 3am as the side effects are that I don't sleep throughout the whole night. I will be asking my doctor at home for prednisone if this happens again as its more effective than painkillers."