Fentanyl is commonly used as a pre-induction adjunct and can cause fentanyl induced cough. In this study we want to compare the effect of pretreatment lidocaine with fentanyl for suppression of fentanyl induced cough in pediatric patients. This study will perform on 99 Patients of either gender. Inclusion criteria will be ASA I ,II, aged 2 to 10 years old who are scheduled for elective hernioraphy under general anesthesia in Urmia Motahari Hospital, are enrolled in the study. Exclusion criteria include patients with body weight more than 20% of the ideal body weight, emergency hernioraphy, a history of asthma, chronic obstructive lung diseases, chronic cough, upper respiratory tract infection within 4 weeks of Surgery, children with malformation of the tongue and oropharynx, and allergy to the study drugs. All patients will receiving an oral administration of 0.3 mg/kg of midazolam 30 minutes before separation from parents or IV (0.5 mg) and atropine (0.02 mg/kg) when IV access are established before the induction of anesthesia. Patients will randomly allocated using the sealed envelope technique in three groups of 33 each to receive: 1.0 mg/kg lidocaine (I), 0.5 μg/kg fentanyl (II) or placebo equal volume of 0.9% saline (III), 1 min before the IV administration of 2 μg/kg fentanyl over 2second during induction of general anesthesia. A blinded observer, who is not aware of the type of medication given to the patients, will recorded the number of coughing episodes until to 2 minute.