IRCT20130731014229N9 IRCT 2019-04-08 Arak University of Medical Sciences The effect of Aloe vera gel on the severity of acne lesions Comparison of the effect of Aloe Vera gel and placebo on the severity of lesions in patients with acne vulgaris 2019-03-11 anticipated 70 Complete https://irct.ir/trial/37995 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: The samples are randomly assigned to quadruple blocks A, A, B, B in random groups, Blinding description: Participants and data analyzer do not know which groups are located. The samples in the intervention and control group did not know whether they received the placebo or the main drug. The statistician will receive questionnaires as anonymously and in form A and B, and he does not know which are intervention and control group. N/A Acne vulgaris. Intervention 1: Intervention group: In the intervention group, in addition to the medications prescribed by the doctor, topical application of 5 mm of natural aloe vera plant gel for 15 days a day. Intervention 2: Control group: For the control group, distilled water is used as the drug. 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.