Because water sources (wells, rivers, etc.) were so sacred to the Celts, Frogs were often referred to in Celtic stories as rulers of the Earth. They also gave Frog the symbolism of healing and cleansing.
Native American meanings for Frog have commonalities with Celtic symbolism. This medicine animal brings rain and can heal. In one example of folk traditions, Shamans used Frogs for curing coughs. The Shaman would put a Frog in an ailing person’s mouth, recite sacred words, then command the Frog to “hop away” with the sickness (this is a type of disease transference). That is how we come by the phrase, “a Frog in my throat.”
Other Native American meanings for Frog spirit include fertility, prosperity, rebirth and growth. Tribes that have Frog clans include Zuni, Tlingit, Creek and Chippewa.