hello welcome to hcm the pain in your back is due to DISC PROLAPSE although you havnt mentioned your MRI REPORTS and the pain which is going lower down in your leg is due to a condition called as SCIATICA...sciatic is a nerve which supplies lower limb and its compression or streching is what that causes pain in the back side of thigh n in legs....i would like to warn you that TAKING TOO MUCH AND FREQUENT EPIDURAL INJECTIONS/ROOT BLOCKS CAN DETERIORATE YOUR CONDITION AND WILL CAUSE MORE HARM THEN BENEFIT....injections and blocks are for temporary relief only and should be taken occasionally in situations of acute emergency like when you r scheduled for some unavoidable business trip or family function etc....the best way to go in your case will be to STRENGTHEN YOUR BACK MUSCLES BECAUSE ITS THE CONSTANT MUSCLE SPASM WHICH IS THE MAIN CULPRIT FOR CAUSING CONTINOUS SEVERE PAIN...STRENGTHENING THE BACK MUSCLES WILL PREVENT MUSCLE SPASMS AND IT WILL AUTOMATICALLY IN TURN KEEP U FREE FROM FREQUENT PAIN...For the strengthening of your lower back muscles you need to visit a PHYSIOTHERAPIST who will guide you and teach you which specific spinal exercises you should do and then you include those exercise in your daily routine to have LONG TERM BENEFITS...offcourse having epidural injections is a EASY TO GET AND INSTANT SOLUTION FOR RELIEF FROM PAIN BUT ONLY FOR A SHORT TIME and DOING EXERCISES DAILY IS A SLOW AND TIDIOUS PROCESS BUT THE BENEFITS WILL BE FOR LOOOONG TERM,i hope you got my point...remember that story we use to read in our primary school ?? SLOW AND STEADY WINS THE RACE !!!! regards hcm