Is there evidence showing homepathic treatment can enhance the growth of breasts?

Not directly: I'm not sure where you heard such a thing? Homeopathy is a comprehensive system of medicine. It can help many conditions, stimulating your innate restorative system in very specific ways that are called for by the symptoms you suffer. Your system responds in its own way & at its own pace, relieving symptoms and improving overall health. I would not recommend it for breast growth alone.