Help cat ate dead lily

I had gotten these store bought lilies from a friend. I figured out they were toxic though and left them in my office room to be locked in so my cats couldn’t get to them. I accidentally left the door open and soon enough my one cat started biting the leaves. I don’t have the funds to take her to the vet at the moment and idk what to do. The plant was already dead so idk if this would reduce the risk of anything. It’s been 5 minutes since she starting biting them and she seems ok

Update: I’m already at the ER, she’s gonna be ok. I shouldn’t have risked anything and took her right away. I’m grateful that I had you all responded so quickly. Thank you, I’ll do better next time as a pet owner