The kind of health services available varies from a full clinic staffed by doctors and nurses at most universities to a place to pick up a Band-Aid and check for a fever at a community college. In general, the more residential the school, the more extensive the services provided.
Clinics are often more affordable for students than seeing a doctor off campus, and many clinics can prescribe medications. Personal counseling may also be offered through the Health Services at your institution and can be helpful for students with personal problems and mental health issues.
Become familiar with what services are offered at your institution. Know the hours of operation, how to make an appointment, and whether an appointment is necessary. Also be sure to check on the availability of student insurance.