Chromotherapy is a technique that uses colored light to treat diseases. It works by restoring imbalances through applying different colored lights to the body. Ancient cultures like Egypt, China, and India used color therapy. Modern chromotherapy was pioneered in the late 1800s. Different colors like red, blue, green, orange, yellow, indigo, and violet are associated with different bodily systems and functions. Each color has properties that make it suitable for certain indications and contraindications when used therapeutically. The document provides details on the properties and potential treatments associated with each color.