Introduction: Edema and ecchymosis are the two most common complications that occur in the immediate postoperative period after rhinoplasties. Arnica montana is a homeopathic medicine used in wound healing and to improve edema and ecchymosis. The purpose of this study is to compare the benefit of Arnica montana used topically with the oral route after rhinoplasty. Methods: In this clinical trial, study subjects were divided into three groups. The first group received topical Arnica montana gel, the second group received it orally, and the third was the control group. Patients had photographs taken to analyze the edema and ecchymosis on the 1st and 7th postoperative days. The photographs were analyzed by two peer reviewers, who classified the edema and ecchymosis in degrees. Results: The mean age was 27.08 years, ranging from 16 to 53 years old. Female individuals predominated. For the two variables analyzed (edema and ecchymosis), results indicate there is no significant difference between the groups at both assessment times. Conclusion: In our prospective study, we found no significant differences between patients who underwent rhinoplasty who received the perioperative homeopathic medicine Arnica montana orally and topically from those in the control group.