The purpose of this work is to estimate the efficiency in terms of pain of the application of a local anesthetic (xylocaïne viscous 2%®) during the realization of an examination in naso-fiberscopy in consultation of ENT at the child from 3 to 7 years old.

Inclusion Criteria:

• Subjects from 4 to 7 years old (old enough to answer the test of self-assessment, the scale of faces)
• Appearing at the consultation of pediatric ENT, requiring an indirect laryngoscopy in the naso-fiberscope for a laryngeal evaluation.
• Subjects girls or boys

Exclusion Criteria:

• All the criteria dissuading the employment of a local anesthetic
• Naso-fibroscopie realized within the framework of a nasal obstruction, or of a balance sheet of the gulp.
• Patients having already been examined by naso-fiberscopy, so that their reactions and their answers are not influenced by the previous experience of the examination.
• Not consent of one of both holders of the parental authority