Many students find it hard to know whom to tell, and when, and how much, about the stress at home. Many students are helped by being able to talk a lot about the home situation, but many who have not been through such a thing find it awkward to listen. Things may be going along well for a while, then news comes about the family member that is frightening or discouraging. It's important to remember that there are people on campus who have had the experience of illness in the family, and some would welcome the opportunity to connect with others on this experience. The Health Center, with both medical and counseling personnel, is a resource for information, general support, and counseling for the stress a student may be experiencing.
Chaplains are a good resource as well.
Other staff and faculty members may be knowledgeable and willing to help out. If you are in such a situation, or have a friend who is, please don't hesitate to get connected with help. It can make a difference.