How do I take care of my pet dog's health during the holiday season? Are there any things that I need to particularly keep in mind?

  I don't think you have to do anything special during the holidays.  Their needs are the same everyday of the year.

It is particularly important to take care of your pet's health during the holiday season. Dogs can fall sick easily if there is a change in their routine. During holidays when there is an influx of guests and lots of decorations are put up, it is necessary to ensure that your pet dog's health does not get compromised in any way. Even common house plants can affect your dog's health if the animals ingests some leaves or sap. Vet care is expensive and whether or not you have pet insurance the best thing to do is to see that your pet dog stays out of harm's way.

Also be aware that you should not let your dog have chocolate candy as a treat Chocolate is deadly to dogs. Keep the Hershy kisses up on top of the refridgerator and out of his reach.

Yes, chocolate is a "NO, NO" for your dog.  Also, grapes and especially raisins are deadly!

The holidays put a lot of stress on everyone involved, some of it good and some of it bad. Our pets have to withstand any number of unusual circumstances that are novel each year because they don't have the chance to get used to them.Keeping as close as you can to your pet's normal schedule is the best antidote to holiday stress. Stay consistent with feeding times and amounts, and be on guard against illegal snacks.Now a days a well proven system of Dog minding & sitting  is used to introduce and then settle the house-sitter into your home ensuring they are completely familiar with your pet & property needs.