Eir is the healer of the other gods and goddesses. If they were ever sick or injured; Eir would heal and protect them. One of the things Eir uses to heal people is ritual involving a white tanned flower (called the "Eirflower" for this reason). She would only use this ritual if she really needed to.
Eir's specific color is green . It was common to light a red or green candle for Eir when praying for healing.