Finding Pain Clinics

I haven't written anything in awhile-just trying to make it one day at a time. Here is my problem-I live in Illinois approx. 60 miles south of Chicago. I am on Public Aid for my healthcare coverage because I have been turned down for every private insurance policies because of all my "pre-existing" conditions. I cannot find a pain clinic that accepts public aid. I have spoken with my primary doc about this and he doesn't know what to do either-he is a good dr. but does not prescribe any of the usual chronic pain drugs. He has giving me a referral-but it does no good if I cannot find a pain clinic to accept public aid. Is there anyone out there that can offer some advice and try to help me?