All she could do was hope that he moved ahead, instead of back. So once he was on his feet she moved forward, hating herself for it, but trying to use whatever he was seeing to get him to move. Simply moving forward was a step.
But she didn't stop talking. In hopes that he would hear her and only her, at least for a moment. "Robin, listen, they have medicine in the infirmary, it will help you feel better." She wasn't desperate enough to call for help, as she was sure it would drag Logan from whatever he was doing. And she knew Rogue needed him. Almost as much as he needed her. So she simply positioned herself so Robin couldn't go back to the wasps.