/kloc-After pregnancy in October/October, some mothers will have a lot of pigmentation on their faces due to endocrine changes, but postpartum pigmentation will subside, but it is difficult to completely disappear. In order to prevent stains from affecting the appearance, we must do a good job of whitening and freckle removal after delivery. In addition to whitening and removing spots with skin care products after delivery, you can also regulate your body through dietotherapy, such as eating foods rich in vitamin C, vitamin E and protein, which can effectively inhibit the transformation of metabolic wastes into colored particles and reduce the production of melanin.