My Daughter Was Using Opiates And Now Has Been Going

My daughter was using opiates and now has been going to a methadone clinic since march. She goes and on the 3rd day if she don't go i see like her going through withdrawals if she don't go get the methadone stuff they give her. She wants to get off it but lost on what to do now or what to do. Is there any help for her? Will she die if she don't go to methadone clinic. I realize now reading stuff its just as bad as the opiates. Need help so i can help her.