Clogged up tubes after vasovasectomy

Sonia
My husband just told me he has the same pain he had after his first reversal in January 2015. Shortly after that we found out his tubes clogged up so we got another reversal which was a vasovasectomy trough the VA. We found out his right testicle was not producing sperm anymore (I guess the tested or checked it right away) but the tube from the left testical was so full of scars that they used the tube from the right one for the left one... Anyways our first count after 3 months was amazing. The doctor was happy with the results. Three months later we had literally ZERO... Now he tells me he's in the same pain when the tube clogged up... So I guess that's why we had zero spermcount...
Does anyone know if they can unclog it somehow without a surgery? Or is it even possible? I'm just trying to figure out what's best... We would get it paid by the VA because it gives him pain...