RDVision system gives real-time grading results from mobile phone-captured images driven by artificial intelligence. It aims to reduce the clinical workload, increase consistency, and eventually enhance patients’ quality of life. The algorithm was developed by deep learning technologies that incorporate the knowledge from thousands of cases reviewed by experts,with a mission to generate patient severity assessment reports and personalized treatment advice, to guide patients on their next steps and whether to seek medical attention. It provides a solution for the rapid and accurate diagnosis of dermatitis after radiotherapy for patients with nasopharyngeal carcinoma, and automatic diagnostic functions for other cancer types will be developed gradually.