I'm not sure I'd call it consequences as much as inconveniences.

[Yuuna shakes her head, smiling softly. The girl seems hesitant enough as it is, enough that she'd feel bad telling her to toss the toy away.]

I don't think whatever's causing the effects will last very long. I'd keep it, because it is really cute. I'd just put it in a backpack or something, or keep it at home till the effects stop.