Hello, the symptoms described by you are suggestive of fracture. There are 3 finger bones called phalanges. When it is broken with several pieces or just cracked, we call it as a fracture. There may be a collateral ligament avulsion fracture or base fracture with dorsal angulation. This can occur through a crushed injury or other direct injury. Very rarely it may break through a weak spot caused by a cystic tumor. Immediately you have to elevate, ice application can also relieve the pain. If there is a cut a tetanus shot, antibiotics and other treatment is needed. I would suggest you to get an X ray of the finger to find out the cause. A protective splint and special exercises can improve the movements and strength. Depending on the nature of the injury, a splint or a cast or surgery can be planned. As she is already taking Advil she can continue with the same mediation for a week. It is quite effective in relieving the pain. If it doesn't improve then you can consult an orthopedician. Hope this helps. Thank you.