Abstract:

Objective: To evaluate the clinical therapeutic efficacy and safety of red-blue light irradiation combined with Xihuang Capsules in the treatment of moderate to severe acne vulgaris. Methods: Eighty patients with moderate to severe acne vulgaris were randomly divided into Xihuang Capsules group (control group) and red-blue light irradiation combined with Xihuang Capsules group(observation group). The patients in observation group were treated with red-blue light irradiation (20 min biw,4 weeks)combined with Xihuang Capsules (1.5 g bid,4 weeks), while the patients in control group took only Xihuang Capsules orally (1.5 g bid, 4 weeks), The changes of skin lesions and adverse reactions were observed and the curative efficacies were compared at 2 or 4 weeks after treatment. Results: After 2- week- treatment, the total effective rate in observation group was 67.5% while the total effective rate in control group was 52.5%,there was no statistically significant difference between two groups (P > 0.05). The regression number of inflammatory and non-inflammatory skin lesions in observation group was significantly higher than that in control group (P < 0.05). After 4- week- treatment, the total effective rate in observation group was significantly higher than that in control group (85.0% vs 65.0% ),and the difference was statistically significant (P < 0.05);the regression number of inflammatory and non-inflammatory skin lesions in observation group was significantly higher than that in control group (P < 0.05).During the treatment, there were no severe adverse reactions in two groups. Mild headache and nausea occurred in observation group after red-blue light irradiation, but the above symptoms disappeared after reducing the irradiation dose. Conclusion: Red-blue light irradiation combined with Xihuang Capsules in the treatment of moderate to severe acne is proved to be a significantly effective and safe method,and it is worth to be promoted in clinic.

Key words: red -blue light, Xihuang Capsules, acne vulgaris, curative efficacy