Cold sores are caused by a specific virus type and the LightWalker Nd:YAG laser is a great tool to eliminate viruses. Laser treatment helps ease the discomfort or pain you may experience with cold sores. It also helps with quicker healing and decreases the frequency a cold sore appears on a fixed spot. If it is treated during the short initial stage where you may only feel the discomfort or itchiness, we may prevent the cold sore to appear!