Get Your Dog Care Questions Answered by Experts
My vet recommends giving one dose of 12.5 milligram diphenhydramine hci (benadryl) every 12 hours for a dog this size. Do not give more than three doses.
You need to see your vet on Monday.
Be very careful with steroids and be sure to "step down" rather than stopping them cold turkey.
Let me know if you still have questions.