Facet injections for degenerative disc disease

After many years working as an RN, on my feet a lot, also lifting and moving patients, I have diffuse degenerative disc disease. Most of the time, I am able to do things to manage my condition and the associated discomfort, but every so often things flare up and the pain gets worse. I have been going to PT and doing exercises etc at home, but this time conservative measures aren't helping very much. My pain management doctor has suggested doing injections into the facet joints of the spine. He feels this will work better than an epidural injection. I would appreciate hearing from anyone out there who has been treated with facet injections.