😭😭😭

My husband accidentally used our large dogs flea meds on our 8 month old cat yesterday while I was at my first day back to work. She is in aniphylectic shock now... shaking uncontrollably and looks so weak. Our vet said to give her a bath In dawn to get what we can off her but I'm so scared! We don't have any spare money to take her in for medical intervention and everything I've read say to prepare for the worst!