IRCT20220411054489N1 IRCT 2022-05-29 Babol University of Medical Sciences The efficacy of Black seed spray in the treatment of Nasal allergic inflammation Evaluation of effectiveness of the spray effect of Nigella Sativa plant on allergic rhinitis in children 3 to 15 years old 2022-06-06 anticipated 50 Complete https://irct.ir/trial/63137 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: After blocking, the samples are randomly divided into two groups of 25 using the table of random numbers in the intervention and control groups.The randomization unit is individual. The size of the blocks is 4 and in each block, each intervention group will be repeated twice. Sequences of size 4 will then be generated using Sealedenvelop.com ¬ software. Using this randomly generated list, participants are assigned to one of two study groups. To hide the random allocation list, a special code will be assigned to each of the intervention groups that even the main executor of the project (supervisor) is not aware of. These codes are written on a piece of paper and placed in a sealed envelope. A unique code that is specific to each patient will be written on this paper as well as its envelope. All envelopes are placed in a larger box in random order and will be sealed in the box. The main researcher, after reviewing the inclusion criteria and obtaining informed consent, as well as registering the patient's details in a special form, with the cooperation of the random allocation list (this person is an expert other than the main researcher involved in the disease recruitment process And the sample is entered) is called and the patient is randomized. 2-3 Allergic rhinitis. Intervention 1: Intervention group: Includes a puff of corticosteroid montazone nasal spray every 12 hours with an antihistamine (neotadine tablet or syrup) adjusted by weight, and an anti-leukotriene (5 to 10 mg daily by Montelocast depending on age) and Rasa Synx nasal spray (black seed extract, made in Iran) one puff every twelve hours on each side of the nose (for three weeks). Intervention 2: Control group: Includes corticosteroid montazone nasal spray, one puff every 12 hours, antihistamine (neotadine tablet or syrup) adjusted by weight, and anti-leukotriene (Montelukast 5 or 10 mg daily, 1 depending on age). No - There is not a plan to make this available Justification or reason for not sharing IPD is The information is confidential on the basis of a contract between the executor and the patients.