Your Dog at Christmas: How to Have a Pawesome Christmas!
As well as using a natural calmer there is plenty you can do to help your dog to understand that strangers need not be frightening. Ask your dog friendly visitors to go with you to take your dog for a walk and let them reward your dog with a delicious treat whilst out. This will help your dog to understand that strangers bring good things. In the same way, strangers coming into your house can roll a favourite ball or toy across the floor as they come in as a way of helping your dog to understand that visitors are fun.