Did your nerve block contain a steroid? Steroid injections can increase blood sugar levels for several days. I recently had a steroid injection in my shoulder and was warned about this. http://www.ncbi.nlm.nih.gov/pubmed/21540770
With pudendal nerve blocks it may take 3-4 days for the steroid to kick in, however; it is not uncommon for PN blocks to cause a flare-up for several weeks. That is what happened to me with one of my nerve blocks. Hopefully your pain will calm down soon. In the meantime, you may need to increase your pain medications.
This webpage might answer some of your questions about nerve blocks. http://www.pudendalhope.info/node/51
Did you experience any relief at all, even for a few hours? If so, that could indicate a diagnosis of pudendal neuralgia. I would not even consider ablation of the pudendal nerve unless a pudendal nerve block definitively confirmed that I had pudendal neuralgia. Even then, I would think twice about an ablation and would try a lot of conservative therapies first.
There are two types of ablation -- pulsed radio frequency (PRF) ablation or cryoablation. I explained the difference in an article in this newsletter. http://www.pudendalhope.info/sites/defa ... 202014.pdf
Since that article was written, there have been several physicians who are doing cryoablation on the pudendal nerve but with mixed results.
From what I've heard, PRF may provide temporary relief but will likely have to be repeated on a regular basis. Cryoablation is more neurodestructive but may also need to be repeated. There are risks involved with both procedures.
I think the important thing to do at this point is to let your doctor know about your increased pain levels to see if you can get some extra pain meds, and to use whatever other methods of pain control that work such as heat and ice. Sorry to hear you are having increased pain but keep your courage up because it is most likely temporary.
PNE since 2002. Started from weightlifting. PNE surgery from Dr. Bautrant, Oct 2004. Pain now is usually a 0 and I can sit for hours on certain chairs. No longer take medication for PNE. Can work full time and do "The Firm" exercise program. 99% cured from PGAD. PNE surgery was right for me but it might not be for you. Do your research.