Some of the problem in finding information about Wadjet lies in the fact that, while she is one goddess, she has many names. Wadjet, Edjo, Udjo, and Buto are only a few of the names by which she was known. The spelling of her name seems to depend upon who was presenting the information about her and which area of Egypt the exploration was taking place.
Most popular information about Wadjet lists her primarily as a snake-headed protector of Lower Egypt, the delta region. However, the ancient people of northern area worshiped Wadjet as a vulture Goddess. Wadjet was revered as the goddess of childbirth, and protector of children, and in later years she became the protector of kings. Wadjets role was often seen as a forceful defender, while her sister, Nekhebet, was seen as the motherly defender. This contrast provided the counterpoint seen in many of the Egyptian deities. The symbol of justice, time, heaven and hell, Wadjet is one of the oldest Egyptian goddesses.
Often shown as a cobra, or as the head of the cobra, Wadjet can be seen rearing from the forehead of the rulers. Evidence of her protection is most notable upon the funerary mask of Tutankhamen. Occasionally, she has been shown in the guise of her "eye of divine vengeance" role, as a lioness. In later years, the royal crowns were often decorated with two or more depictions of cobras in deference to her role as protector.
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While Wadjet was sometimes depicted as the lioness-headed goddess, she was often seen in the image of a mongoose, represented on the funeral urns of ancient Egypt. The mongoose was revered as her sacred animal. Along with the shrew mouse, they were mummified