Illegal immigration from Mexico to the United States?
First, I would look into whether she is a U.S. Citizen by derivation. I’m not sure from your facts if the father was actually born in the U.S. or if he was naturalized. Next, assuming that does not work, transporting drugs makes her an aggravated felon and would not be eligible for any waiver. However, if the crime were vacated and/or reduced to a crime that was waivable, she may be able to come into the U.S. in the future.