Wheelock & Associates Dentistry uses laser dentistry to treat cankers and cold sores. Using laser technology, our dentists can help your cankers and cold sores heal in a matter of days. Laser treatments are fast, safe, and pain-free. Call our office at 712-274-2038 for more information about canker and cold sore laser treatment in Sioux City, Iowa, and to schedule your treatment with Dr. Wheelock, and Dr. Baller.