Looking for a One Month Drug Rehab Program in Southeast USA for My Little Brother Who Is Addicted to Oxycontin?

Hi, please let me know about any 1-6 month drug rehab programs preferably in Florida or the southeast USA that rehabilitates addicts, specifically oxycontin. My brother is only 19 and needs treatment ASAP. Also, I am looking for something low cost / free / income based as I can only come up with about $2-3k. Any and all free ones anywhere in the country you know about would also be great. Thanks for the help.