IRCT2016021526572N1 IRCT 2016-08-02 Shiraz University of Medical Science The effect of relaxation on the pain after surgery The Effect of Relaxation Training on the Pain after Surgery in 8-12 year old Children Admitted to the Surgical Units of Shiraz University of Medical Sciences in 1393-94 2015-01-21 anticipated 104 Complete https://irct.ir/trial/21985 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Supportive. N/A pain. Intervention 1: The children in the intervention group, in addition to routine care which includes analgesics (a dose of 10 mg/kg Apotel and 0.1 mg/kg Petedin) if required, were introduced to the relaxation method that was trained individually during 2 sessions, each session 20 minutes, with an interval of 4 hours a day before surgery along with listening to a CD in which the procedure was explained by the researcher and after each session to ensure the child's learning, 10 minutes for questions and answers was considered. The intervention by the child himself and in the presence of the researcher was conducted for 20 minutes,. an hour later from entering the patient to the unit and the pain score of the child was measured before intervention, one hour after intervention and twelve hours after intervention Then its impact was measured on the score of the severity of his pain in three above phases. Intervention 2: Control group routine care which includes analgesics (a dose of 10 mg/kg Apotel and 0.1 mg/kg Petedin) if required.