“Nina’s themes are health, cooperation, dreams, magic and meditation. Her symbols are lions, fish and serpents (Her sacred animals). A very ancient mother Goddess figure in Mesopotamia, Nina has many powers, including healing, herb magic, meditation, dream interpretation and helping civilization along when needed. Today we will be focusing on Her healthful attributes and knowledge of herbs to improve well-being for the winter months.
Pan-American Health Day focuses on worldwide cooperation in the public health field. On the home front, do everything possible to make your home and body healthy and strong. Beginning in your living space, wash the floors using sage water and burn a sage smudge stick. This herb decreases germ infestation and is magically aligned with Nina’s energy. As you go through your home, carry a small bell and add an incantation like this:
‘Nina, come and make us well
banish sickness with the ringing of this bell.’
Ring the bell in each room at the end of the incantation. In many religious traditions, bells are considered to scare away the evil influences that cause sickness.
To overcome a troublesome malady, put a picture of one of Nina’s sacred animals under your pillow to invoke a healing dream. This tradition is very old and sometimes results in healthful energy being conveyed through your dream, or in a dream that shows you what to do for the cure.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
First off, I found that Nina is another name the Goddess Inanna. “Nina, in Assyro-Babylonian mythology, was the daughter of Ea, the god of water, wisdom and technical skill. Nina is also the Goddess [of] Ninevah, the capital city of ancient Assyria.” 
Then, I ran across this fabulous article entitled “Nina: Ancient Sumerian Mother of the Mermaids“. Apparently, “in the cities of Harran and Ur, they called Her ‘Ningal‘ or ‘Nikkal‘; in Nippur, ‘Ninlil‘; and, at the shrine at Al Ubaid, She was ‘Ninhursag‘. When spoken of in conjunction with ‘Nammu‘ and the myth of the formation of the people of the Earth, She was ‘Ninmah’.
In Her capacity as Comforter of Orphans, Caretaker of the Elderly and the Ill, Shelterer of the Homeless and Feeder of the Hungry, She was called ‘Nanshe‘; on the plains of Khafajah, ‘Ninti‘ or ‘Nintu‘; on the Isle of Dilmun, ‘Nin Sikil‘.
When She provided: healing herbs, ‘Ninkarrak‘, ‘Gula’ or ‘Bau‘; dream interpretation, ‘Ninsun‘ or ‘Ninsunna’; beer and wine for holy rites, ‘Ninkasi‘, or, as She arose from the deep waters of the primordial sea, simply: Ama Gal Dingir, the Mother Great Goddess.
The Goddess ‘Atargatis‘ (who maintained a presence at the temple of Ascalon on the Mediterranean Coast, famous for its dove cotes and as a shrine of oracular prophesy) is considered to be quite possibly connected to the early Sumerian images of Nina or Nammu because of Her association with the city of Nineveh (on the Tigris River) and Her primary image as a Goddess of the sea — depicted with the tail of a fish!
Whether Atargatis came ashore from the Mediterranean at Ascalon or was born of the waters of the Tigris is a matter for debate. That She bore a daughter who walked on two feet, Shammuramat, is not. Also, it is known that upon Her altars, Her priestesses and devotees sacrificed to Her fish.” 
Jean. Gather.com, “Nina: Ancient Sumerian Mother of Mermaids“.
Orrar.net, “Goddess Nina“.
Sacred-texts.com, “CHAPTER VI: Wars of the City States of Sumer and Akkad“.
Siren, Christopher. Home.comcast.net, “Sumerian Mythology FAQ“.