There is a form of ovarian cancer that is diagnosed in teens, and the prognosis is usually very good. The chemo is not taxol/carbo, not sure what it is, but, it is a tough chemo regime, usually requires a hospital stay. There was a man that used to post, Bob, his daughter was diagnosed while she was in high school. She's doing great, don't remember his "forum" name, but, his name was Bob and his daughter is Ashley, if you search you might be able to find some of their posts.
Be a friend talk about non cancer thongs. Go to the movies, have lunch or just go shopping for comfortable clothes with buttons and loose shorts. You can go with the person to chemo and sit and watch tv read magazines play cards and other things. Chemo areas usually have seating for 1-2 people. Give her an iTunes if she likes music of het her songs with encouraging and upbeat music. She should get second opinion. Surgery is likely and she will be sore and uncomfortable and should move around so she won't get blood clots. Call and say you just want to say hello.
Has it actually been a confirmed diagnosis of Ovarian Cancer? She is so young. Not saying naturally that this doesn't happen. I guess it just isn't fair. Just being her friend, listening, talking, helping her during whatever she may have to go through (surgery, recovery, chemo, etc). There are alot of people on this forum that can provide you help and assistance.