Objective: Febrile seizure (FS) occurs between 6 months and 6 years of age. Febrile seizure is a common disease in pediatrics. Some patients are retarded with recurrent febrile seizure. For example Drawet syndrome was started with febrile seizure and progress into the intractable seizure and finally are retarded.

Materials & Methods: This article is the clinical trial study. Population in this study are 86 children whit febrile seizure refer to pediatrics’ medical central. This study was carried out in 2013. In this study evaluated patients with febrile seizure’s criteria and included in the population. Children statistics with febrile seizure refer to pediatrics’ medical center registered and compared with other statistics. Data enter the SPSS program 18 version (SPSS Inc, Chicago, USA) and used analysis statistical tests and also T-test, Chi Square tests. Finally evaluated total parameters by MIN+SD and reported significant difference (P-value<0.05). Numbers of patients determined according to previous study.

Results: In this study 46 patients with complex febrile seizure and early initiation of treatment were not retarded and haven’t any complications.

Conclusion: Early initiation of treatment in the patient whit febrile seizure very important to prophylaxis of developmental delay and developmental regression.