What should I do if my skin turns dark after laser treatment?

Skin darkening after laser treatment may be caused by various factors. Below are some recommended measures: 1. Identify the cause of skin darkening, which could include post-inflammatory hyperpigmentation, UV exposure, dietary factors, skin infection, or allergic reaction. 2. If caused by UV exposure, strictly adhere to sun protection—use sunscreen and avoid prolonged sun exposure, especially under intense sunlight. 3. Reduce intake of foods high in pigments, such as soy sauce and coffee; increase consumption of green vegetables and fruits. 4. Maintain skin hydration using moisturizing products, and avoid using irritating cosmetics. 5. If skin infection or allergy is the cause, appropriate medications may be used under a doctor's guidance. If the darkening is severe or does not improve over time, it is advisable to seek medical attention at a hospital.