You can use laser photon whitening after delivery. Laser rejuvenation is a non-exfoliating treatment method, which can improve skin quality from the basal layer and provide non-invasive treatment, and is suitable for different skin types. It penetrates the skin through a specific wavelength and directly acts on collagen cells and fibroblasts in the dermis, so as to regenerate collagen in the skin and truly achieve the effect of skin care.