IRCT20180115038378N1 IRCT 2018-09-12 Sabzevar University of Medical Sciences Effect of probiotic supplements on children's asthma Evaluation of the therapeutic effect of adding probiotic oral powder to standard treatment for the improvement of mild to moderate asthma in children 2018-06-15 anticipated 120 Complete https://irct.ir/trial/31688 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Block randomization based on permutation. Accordingly, 30 blocks were allocated to patients, in each block 2 from A treatment group and 2 from the B treatment group were placed. Eventually, after completion of the blocks, group A was treated with probiotic capsule and Group B treated with placebo capsule, Blinding description: Each person in the study will be assigned code A and B, that the researcher will only be known of the type of groups. The outcome evaluator and practitioner is unaware of the groups. It should be noted that Probiotic and placebo are similar in appearance, color and packaging. 3 Asthma. Intervention 1: Intervention group: Patients in this group consume 500 mg of Fmilact probiotics (produced by Zist Takhmir Company) for one month after three meals. Intervention 2: Control group: Patients in this group consume placebo capsules (prepared in the Iranian Pharmacy Lab) for one month after three meals. 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