Evaluation of the therapeutic support effects of light therapy for patients with severe acne vulgaris

To evaluate the treatment results of combined blue light (415 nm wavelength) and red light (633 nm wavelength) therapy for patients with severe acne vulgaris. Subjects and methods: A pre-post comparative interventional study on 30 patients with severe acne vulgaris, examined and treated at the National Hospital of Dermatology and Venereology from July 2022 to June, 2023.