I think it is a good idea to start with the lidocaine first to see if the pain goes away before he starts putting prolo solutions in there. I also think that flouroscopy is a good idea, too, because I would rather the doc know exactly what he is hitting rather than you, as the patient, trusting that he knows where the ligament/bone/intraosseous junction is. When I went into my first prolo session I walked out of there with so many injections in so many places...and most were for no reason at all. Lidocaine first makes a lot of sense. A whole lot.
I think the hard part is getting up the guts to say to the doc that no, you do not want your good side prolo'd. This is easier said than done, especially when you get in the office and are nervous and this doctor is in front of you saying, "hey, I'm a doctor and I know what I'm doing." I always went to prolo saying, "okay, THIS time i'm only gonna let him prolo this or that" and I ended up being a weenie and not speaking up and had so many areas prolo'd I couldn't count. You gotta speak up, it's your body, and just say that you want one side prolo'd. Easier said than done.
In terms of helping structurally, I just don't know. They say it tightens up ligaments and helps with stability...but it's hard to say if it is really true or not. Most of the evidence is anecdotal (though there are a few studies out there) so it's hard to say. I've spoken to some people who swear by it, and others (like myself) where it didn't do a thing. It's really you're call as to whether or not you want to try it. And, also, it's pretty expensive so that's a factor, too. I know for me I put a lot of trust into prolo and it didn't work out for me and that was disappointing. It's not a the miracle cure all for pain it is touted to be, but it has helped a lot of people. I wish I could give you better advice, but all I can say is it's up to you.
Lemme know if you have any more questions.
Take care,
Julie