I met a gal from the Ukraine and she has a current tourist visa to the US. It expires in 6 months. I wanted her to come visit me and she all ready has a flight booked for a previous trip to LA in 3 months. She is worried they may turn her away if she has to many trips in a certain time frame?? I would think if you have a active visa you can come and go as long as you followed the rules???
i think it depends on a type of visa. if its a multiple visa she can, if not only one entry is allowed.
so ask yr lady first abt the type and google for info:) its much easier and more accurate information