Hermione had heard the Floo roaring to life, and she'd been on her way to that room when she saw her daughter. Wrapping her arms around her, she stroked Rose's hair softly. "Shh," she breathed as she cradled her daughter's head against her shoulder briefly before stepping back to look at her.
She looked fine, but that was hardly enough. Cupping Rose's chin gently, she gazed into her daughter's eyes. "Are you all right? How are you feeling?" She doubted Rose would know what had happened, but Hermione wasn't above bringing her in to the Ministry to have one of their own Obliviators try to reverse the memory modification. Of course, she could try it herself, if Rose wanted to know what had happened, but she'd wait before suggesting that.