Effect of Oral Extract of Centella asiatica on Burn Pain and Wound Healing; A Randomized Controlled Trial

Aims: Burns and wounds caused by it are a global injury. Finding natural ingredients to accelerate wound healing in patients with fewer side effects could be valuable. This study aimed to determine the effect of oral Centella asiatica extract on the healing of pain and wound of burn in patients. Materials Methods: This study is a clinical trial in which 76 patients hospitalized in the burn department were randomly divided into two intervention (n=38) and control (n=38) groups. The intervention group, in addition to the usual antibiotic treatments, received capsules containing 200mg of Centella asiatica twice daily, and the control group received capsules containing 200mg of starch twice daily. Data collection tools were Bates-Jensen Wound Assessment tool and Visual Analog Scale. Patients’ pain and wound healing status were examined at different time of the study. Findings: The mean burn pain score showed a significant improvement in the intervention group compared to the control group (p 0.001). The average wound healing score did not show significant improvement in the intervention group compared to the control group (p=0.561). However, size (p=0.023), the degree of destruction of the underlying tissues (p=0.032), the amount of necrotic tissue (p=0.015), and the amount of granulation tissue (p=0.001) improved significantly in the intervention group. In addition, the peripheral tissue edema in the control group decrease significantly compared to the intervention group (p=0.008). Conclusion: Oral extract of Centella asiatica reduces pain in burn patients. However, it does not affect wound healing, although it improves some wound healing indicators.