Hello,
This sounds like an allergic reation to something she came in contact with, ingested or inhaled. For this problem please give her Benedryl at 1-2 mgs per pound of body weight every 12 hours. This should help, but please follow up with your Vet tomorrow, since this is a long holiday weekends. Joan
Vet. Tech.
I am a Vet Tech for over 30 + years and have four rescued dogs of my own