It is not recommended to introduce cow's milk to a baby under 9 months of age, as its composition does not meet the needs of children of that age. However, there are alternative options that could be tried. It is important to consider the type of milk being given to the baby currently, any other types of milk that have been tried in the past, and whether the baby has any known allergies or health issues. It may be worth considering trying a different formula that is recommended for her age if there are concerns about her liking the taste of her current milk. It is always best to consult with a healthcare professional for personalized advice.