The yellowing of skin after the scabs fall off may be caused by pigmentation due to improper use of spot removal drugs or improper postoperative care. Skin spots will affect the aesthetics, external use of spot removal drugs or medical beauty spot removal and other ways have been very common in life, but sometimes after the spot removal scabs, yellowing of skin is visible. It may be due to improper use of spot removal drugs, or improper care after laser spot removal surgery, local skin infection, resulting in yellowing of skin after removal of pigmentation on the scabbed parts. Therefore, topical spot removal drugs should be used under doctor’s guidance, and if laser is used to remove spots, then the skin of the spot removal site should be kept dry and clean after the operation to prevent infection. If it subsides by itself within 3 months, it is a normal after-effect of spot removal, and generally no need to care. If it does not subside in 3~6 months, it is necessary to consult a doctor for treatment and take vitamin C and vitamin E orally as prescribed by the doctor, and can also use photorejuvenation and other cosmetic ways to remove yellow and whiten.