Hi Chemar,
I just saw your post and sorry for the delay as well.
Yes, ESI = Epidural Steroid Injection. I have to say I have had only one in the lumbar area and it gave me relief for about a week or so. BUT...again, even with some bulging discs, it was the facets that were the worst. So, the facet injections with a subsequent RF helped a great deal. My husband, on the other hand, has a pretty large herniation at L4/L5. He goes for an ESI about twice a year. It is unbelievable to me that it lasts so long for him. That's not to say he is totally painfree...he still has aches and pain...but nothing that keeps him down.
And I apologize if I was too harsh about Chiropractic care. They probably do have their applications. What I am really trying to say is that if, as you say, your husband has a herniation, compression or any form of nerve root irritation, PLEASE be careful!