Infant crying and sleeping problems are periodically prevalent in many newborns, but when it is more severe and persistent, it is called excessive infant crying or infant colic. The prevalence of excessive infant crying lies between 5% and 25%, depending on the definition and research design. 1,2 Crying can last for multiple hours per day, but does not have a somatic cause in >95% of infants. 3,4 Definitions of excessive crying contain either the prolongation or excesses of crying, or the inability to soothe, and are limited to somatically healthy infants. 2,5,6 Despite the lack of a somatic cause, evidence and practice acknowledge that excessive crying can have long-term consequences for the development, health, and attachment of the infant. 5,7,8 Parents looking for medical care for their excessive crying infants often expect medical advice and solutions, such as pharmacological