How will I search for addiction treatment centers in Camp Hill, Pennsylvania?

My best friend has turned into an alcoholic. I hate seeing her this way. I want so much for her to go to an addiction treatment center so she can get treated of her substance abuse disorder. Things have gotten really bad with her lately. Not only is she the normal temperamental girl I once knew, but she has gotten violent. This isn’t her, and I want the old her to come back. Please help me find an addiction treatment center for her by telling me how.