Inclusion criteria  Pediatric patients aged 4-12 years Genders eligible for study: both sexes ASA physical status I and II  Undergoing tonsillectomy surgery  Exclusion criteria  Parents' refusal Contraindications to regional anesthesia Known allergy to local anesthetics Bleeding disorders Children with diabetes mellitus, obstructive sleep apnea syndrome, cardiac, renal, liver or blood diseases, swallowing disorders or peritonsillar abscess, Children receiving regular analgesia within the last week before surgery, Children undergoing simultaneous procedure in the field of surgery like adenoidectomy or tongue tie will be all excluded from the study.