Unfortunately, there really isn't anything you can do to help her beat her addiction.
Addiction is life consuming. It makes it impossible for the addict to be resonable, responsible, make rational decisions, and it makes it impossible for the addict to care about anything but the drugs. I, like your daughter, started off with roxys and then went to heroin when I needed something stronger. You're daughter is in for a long road and she needs to want recovery more than anything she has ever wanted ever before in her life to even have the smallest chance of obtaining it.
I wouldn't bail her out. She needs to face the consequences of her decisions otherwise she will continue to use. The more we try to help the addict in our lives the more we enable them to continue being addicts. They need to see the consequences of choosing to continue in a life of addiction. Even if you waited til the drugs were out of her system, that doesn't mean she will won't come out and do them again and this time something more serious could happen.
I wish you and your family strength in this hard time. Your daughter needs to evalute her life and decide if she wants to be life or death.
hugs
Maylie