Does Medusa have allies

No. Athena is her enemy. Medusa lived in Athens and was considered the prettiest. Every day, she would brag about her beauty. (annoying, right?) Anyway, she went to the Parthenon with her friends and bragged about how she could could have made a much better model, for the sculpture of the goddess Athena herself. She kept bragging on and on to her friends about how she would have made a better model than Athena for all of the paintings and sculptures in the Parthenon. Everyone in the temple heard her, and in fear that Athena might come to the Parthenon in rage, everyone left, leaving Medusa alone. Athena visited Medusa and told her, that it didn't matter about the outside, it was the inside that counted. She turned her into a hideous monster with snake hair and the power to turn people to stone with one gaze.

:) :) :) Hope that helped :) :) :)