Q. How do you get dog to stand still while being trimmed?
DESTINI R. HOLLOWAY, DVM
A. Placing a leash and collar on your pet while you trim helps keep her immobile and from running away. Also you can try to give your pet some Benadryl 45 minutes before starting to help calm her down. The dosage is 1mg/lb of benadryl.
You have to remain firm yet gentle with the trimming process so as not to cause injury. Also ensuring that the clippers you use don't overheat by using cool lube can help prevent discomfort during the grooming process. I break my pets grooming up into sections and this seems to help him get a break for a while, then I go back to grooming some more, give him another break, then I typically can finish the groom on the 3rd try. Persistence and patience is the key.
But if all else fails and your pet is still uncooperative then you may just have to have a professional do it instead.