But if it isn't really there is little you can do but be a sounding board, letting her know you care and comfort to her on the phone or FaceTime ..honestly there wouldn't much more you could in person.
You can't do anything except listen and be sympathetic. This isn't something that can't be 'fixed,' so don't try. And don't offer 'solutions' because she'll have heard them all. Just be as supportive as you can.