Whatever is in existence in this universe, has specific colour for recognition. On the other hand the different colours of sun rays and their elements are being used in preparation of medicines all over the world. In sun rays-therapy, these colours are used directly in preparation of medicines which are worked out to be at a very low cost and within the reach of the common people. The seven main colours of sun rays are:
1.    Violet
2.    Indigo
3.    Blue
4.    Green
5.    Yellow
6.    Orange
7.    Red

The properties of rays of these colours can replace a vast quantity of allopathic medicines used by patients for their various diseases.