It usually takes about 10 days for all scabs to fall off after spot treatment. Spot spotting mainly refers to the irradiation of pigment spots by pulsed dye laser or Q-modulated laser to break up the aggregated pigment clumps under the skin and completely absorb them through its own metabolic system to achieve the whitening effect. After spot treatment, the patient’s skin will be irritated and a blood crust will form on the surface, which will gradually fall off with time. Under normal circumstances, the scabs will fall off completely through the patient’s own metabolism in about 10 days. However, a temporary erythema may remain on the skin, which is a normal phenomenon. It is recommended that patients choose hot towels to apply hot compresses after the scabs fall off the skin surface in order to promote local blood circulation and thus accelerate the reddening of the red spots. In addition, patients can also choose to apply medical moisturizer to increase the thickness of the stratum corneum and promote the local immune metabolic function to return to normal.