“Damona’s themes are animals and health. Her symbols are sheep and hot water. A Gaulish Goddess who cares for all domestic animals, especially sheep and cows, Damona is sometimes portrayed as a hot spring, alluding to a healthful, warm quality. As fall nears, we can call on Damona to protect our pets, or to maintain the health of animals who provide us with food.
As one might expect, the historic Shepherd’s Fair in Luxembourg brought together sheep merchants to show their goods to interested parties, including a special parade of the animals bedecked in ribbons. The parade probably goes back to much earlier times when animals were taken into magic rituals that maintained health. One way to continue this tradition is by sprinkling a little warm water on your pet to invite Damona’s protection (or brush it into the creature’s fur – this works better with cats).
Wear wool clothing (or wool blends) to don Damona’s healthy aspect for your day. Or, simply enjoy a cup of tea before the day gets busy; Damona abides in warm water.
To ensure a healthful night’s sleep and pleasant dreams, count sheep as you go to bed. Visualize each one jumping over Damona’s waters and walking toward you. This brings Damona into your sleep cycle, where Her energy can flow more easily to renew well-being.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
Damona is a “Goddess of fertility and healing; Her name means ‘divine cow’. Cow Goddesses were linked to fertility and abundance. Little information exists about Her now.” 
According to Mary Jones, “‘Divine Cow’ would make Her similar to the Irish Goddess Boann, whose name also means ‘Divine Cow’. Damona was usually the consort of the god Borvo, usually identified with Apollo. However, at the temple at Alesia, Her consort is Apollo Moritsages, and they are associated with a healing spring nearby. As ‘Borvo’ means ‘to boil’, they are likely the same god under different apellations. At any rate, She was associated not only with the cow, but, like Boann, with springs and water.
If She is identified with Boann, Apollo Moritsages may not be Her consort but Her son, as Oengus mac ind-Og was the son of Boann, and is often identified with Apollo. This would also make Damona similar to Matrona, Goddess of the Marne River, and mother of the god Apollo Maponos.
Based on Her description, to me, this Goddess bears a striking similarity to the Norse primeval cow Audhumla and the Welsh Goddess Fuwch-Gyfeilioru,”a pure white Cosmic Elfin Cow; She Who produces endless streams of milk; She Who has the power to heal, to make fools wise and everyone in the world happy.” 
Her Cyclopedia, “Fuwch-Gyfeilioru“.
Joellessacredgrove.com, “Celtic Gods and Goddesses: D,E,F“.
Jones, Mary. Maryjones.us, “Damona“.
Billington, S. The Concept of the Goddess, “Ancamna and Damona” (p. 30 – 33).
Celtnet.org.uk, “The Gaulish Goddess, Damona: The Divine Cow“.
Her Cyclopedia, “Damona, Divine Cow“.
O’Keeffe, Christine. Tartanplace.com, “Damona“.