Local anesthesia on pain after surgery

INTERVENTION: control: only 5 cc of normal saline was injected. Intervention 1: intervention: bupivacain 0.5 Mg / kg add to normal saline 5 ml was subcutaneous injection. Intervention 2: control: only 5 cc of normal saline was injected. intervention: bupivacain 0.5 Mg / kg add to normal saline 5 ml was subcutaneous injection. Placebo Treatment ‐ Drugs CONDITION: Inguinal hernia pain after inguinal hernia surgery. ; Inguinal hernia PRIMARY OUTCOME: Pain after inguinal hernia surgery. Timepoint: 0,24, and 48 hours later. Method of measurement: visual analogue scale. INCLUSION CRITERIA: INCLUSION CRITERIA: patients who require Inguinal hernia surgery; Age over 10 years exclusion criteria: recurrence of hernia; sliding hernia strangulation ‐ gangrene complications