“Mal ojo, the evil eye, is commonly used [by Mexican-Americans] to explain psychiatric symptoms. It is caused when a person with “strong vision” admiringly or enviously looks at another. . . . Its causation is usually assumed to be inadvertent and the person is not held consciously responsible; implicit, however, is responsibility for unconscious desires. . . .

Clinically mal ojo occurs more often in the younger age groups. Headaches, crying, irritability, and restlessness are common symptoms. . . . Traditional treatments include prayers and “sweeping” or “cleansing” the patient with a raw egg. Another approach to treatment is to try and locate the person who inadvertently caused it (usually within the preceding 24 hours); if this person simply touches the afflicted the illness will be cured.”

—E. Fuller Torrey, The Mind Game: Witchdoctors and Psychiatrists, 1972.