IRCT20181103041539N1 IRCT 2018-12-23 Yazd University of Medical Sciences Comparison of intra nasal lidocaine 10% & lidocaine 5% for headache relief in head trauma Comparison of intra nasal lidocaine 10% & lidocaine 5% for headache relief in head trauma patients referring to emergency department 2018-11-11 anticipated 80 Complete https://irct.ir/trial/35040 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The sprays are sealed in two seals with the names A and B, and the mediator, in such a way as not to be aware of the drug type, prescribes a spray A or B according to a randomized table, Blinding description: After reassuring the eligibility of the criteria for entering the study and obtaining the informed consent of the patient before receiving the drug, the vital signs of the drug during the current headache and the severity of headache were recorded by the Numeric pain scale for the headache by the assessor. After examination of the nasal cavity, if the nasal hole is open, 5% or 10% lidocaine sprays are injected into the nasal spray of a puff in each nasal cavity at the maximum depth by the trained nurse. Sprays are already in indistinguishable coverage and are numbered A and B in such a way that the mediator is not aware of the type of drug and are prescribed to the specimens identified by the accident pattern. 3 head trauma. Intervention 1: Intervention group: Group A administered 5% lidocaine spray administered intranasal. Intervention 2: Control group: Group B administered 10% lidocaine. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information