Sorry I don't have answers for you, but maybe we can compare notes until someone comes along with more definitive information.
I just received the Parapulser from Nulife. I am hoping to heal my groin hernias (one on each side) with that. In addition, I am planning to order comfrey, which is supposed to be the best herb for healing wounds. I will make comfrey poultices. In the meantime, I am using essential oils.
My advice is just keep researching and trying different things. As long as you are pretty sure that it cannot harm you, why not give it a try?
What's interesting is that I had the same type of hernia when I was 32 and it healed naturally without me doing anything about it at the time. The body just healed itself somehow, miraculously.