This document provides information about infantile colic. It discusses the causes of colic which can include allergies, acid reflux, overstimulation, gas-producing foods, and an immature digestive and nervous system. The symptoms of colic are intense and prolonged crying, sleeplessness, exhaustion, abdominal bloating, and excessive flatulence. Colic is defined by the "Rule of Three" - crying for at least 3 hours per day, at least 3 times per week, for a period within 3 months. The document provides suggestions for treating colic such as keeping a diary, getting a medical evaluation, and continuing to search for answers.