The yellow-brown precipitation after the scab of mole spotting usually takes 3~12 months to recover naturally, in addition, it can also be quickly recovered by external medication, oral medication or laser. Mole scabs after yellow-brown precipitation is a normal phenomenon, most people facial hyperpigmentation can naturally subside, generally need 3 ~ 12 months, during which you should pay attention to a light diet, avoid smoking and alcohol, avoid spicy and stimulating food, should also pay attention to the sun, avoid the use of stimulating cosmetics. In addition, the yellow-brown precipitation on the skin can be removed by local topical application of hydroquinone cream and other drugs, and vitamin C can be taken orally for treatment; if the above treatments are not effective, pulsed light and picosecond laser can be used to promote the fading of pigment. If the yellow-brown precipitation on the wound surface does not subside for a long time after the scab of the mole spotting falls off, the doctor should be asked to dispose of it in a timely manner. Medications should be used as prescribed by the doctor.