Cyclic vomiting syndrome (CVS) is a disorder seen primarily in children. It is characterized by a number of clinical symptoms; the most prominent are recurrent, self-limited episodes of intractable nausea and vomiting that are not caused by any specific disease. CVS can be severely debilitating and may interfere with an individual's quality of life. This article describes a patient with CVS who sought treatment for complications after dental extractions, reviews important aspects of this disease, and discusses its potential significance as it relates to the present case.