Anti-freeze: Even in very small amounts of anti-freeze can kill your pet. Symptoms may not show up for a few days and then it may be too late. Store anti-freeze in tightly closed containers and in a place pets can't reach. Always clean up any spills immediately and thoroughly.
When opening a vacation home for the season do not let pets drink from the toilet if you have winterized with antifreeze to avoid freezing.
Antidepressants: These are used more often this time of year to help humans battle the blues and combat the cold and dark months ahead. Be certain to keep them and all prescription and over-the-counter drugs out of your pet's reach as they can be lethal even in small doses.
Holiday Treats & Decorations: Alcoholic beverages, candy, turkey, and fatty foods can be dangerous to your pet's health. It's important to keep your pet on its regular diet during the holidays as they can cause your pets to become seriously ill. Tinsel, glass ornaments, spray on-snow, ribbons, wrapping, or anything a pet can swallow is also dangerous. Try to hide electric cords to prevent pets from chewing on them. Also, do not tie ribbons around your pet's neck or limbs.
Chocolate: Even though it is a year-round threat but is usually more accessible during the holidays, so beware.
Caloric Intake. It is important to keep your pet healthy. Staying warm requires extra calories so more food or a change in diet may be necessary. Talk to your veterinarian about your pet's needs.
Frostbite: This usually makes the skin look reddish, white grey or even scaly or peeling. Consult your veterinarian immediately if you suspect frostbite. To help prevent it, always remove ice, salt, mud and snow from your pet's coat and feet as soon as it comes indoors.
Poisonous Plants: Poinsettia, holly, mistletoe, philodendron and dieffenbachia are plants that are toxic to pets and should be placed out of their reach.