Guaranteed Healthcare

I cannot get the tx I need (tpi of Lidocaine) at an office visit w/o prior approval from ????(whomever it is that gives the approval I am not quite sure-BS/BS or the office manger) when I am in pain. I then have to wait for the approval which is never obtaned at that visit and is asked to be obtained for next visit. I have asked to have standing approval r/t I have constant pain, but this is never done so I have to reschdule appts for a month or two later even when I am in pain now. I am given multiple excuses for not having approval even though I ask every visit for approval to be obtained. Yet I go w/o tx that work for me and provides the pain relief i need w/o narcotics, is minimally invasive, takes little time and is very effective and very inexpensive tx. Yet seems very difficult to obtain. I would like to know why.