You can get rid of a cold sore by applying some ice to the cold sore and applying toothpaste to the cold sore which will help get rid of the cold sore by drying the skin out and then the cold sore will start to flake off.
Another home remedy for getting rid of a cold sore is to take a cotton swab and dip the cotton swab in some salt water or baking soda and water solution.
Apple Cider Vinegar also works for getting rid of cold sores fast.
Dip a cotton ball or cotton Swab in the apple cider vinegar and apply the apple cider vinegar directly to your cold sore 3 to 4 times per day.
Taking 1 tablespoon of Apple Cider Vinegar per day can also ward off the cold sore virus and prevent cold sores from coming back.