To dream of lice suggests guilt, anxiety, and depression. Perhaps you feel that you are a physical and emotional wreck. Also, lice represents that you need to stay away from certain selfish people and relationships.
A license in a dream represents permission from yourself. You may have given yourself license to follow a path in which before you were unsure about. To receive a license in a dream indicates an increased self-confidence and a sense of power.
To see a license plate in your dream signifies free will in your personal choices and life.