I just googled rehab facilities in San antonio and there are several!! alot of them have reviews choose which is best for you call ahead of time drive by if needed. anything is better then worrying about your next fix
Like tiggz said google drug addiction help in your area then call them and see what would be the one that would suit you the best .. you can do this .Let us know what you find out .
take a deep breath. first I'm glad you took the time to look for help. you are welcome here. if you want to go the rehab route just go to one and walk in, they will help you. you have to put your fears aside. if you don't want to taper that's fine just walk into this facility you can find many online in your area just" google it "lol then tell someone you know and love and trust without question that your going into one. support from loved ones helps a great deal!
God bless