Your new pet dog should be treated well and in the clear with the routine. The reason: regular maintenance will keep it healthy and clean, make your dog feel comfortable.
Dog Care when you've just arrived.
The new dog, usually not used to being treated by you, be patient and act gently to him, maybe he was still afraid. When you first bring home your dog, check the condition of skin and fur. Find out whether there is any abnormality such as cuts, swelling, or lice (parasites). If you find anything unusual, immediately contact your veterinarian for advice.
quoted from the Source: www.pedigree.com