When used, white spot concealers are equivalent to a layer of dye being applied to the skin of the white spot area. This skin tone concealer can color the white spot, thus making it look inconspicuous, but it does not play a therapeutic role and only covers it up. This masking agent is usually equipped with small brushes, either large, flat brushes or small brushes similar to brushes, depending on the size of the white spots. If the area is large, you can choose to use the flat, large brush head, which can reduce the amount of medicine used and can make the coloring more even. If the area is relatively small, you can choose a small brush like a brush and use it once a day for better results, there are some cover-ups that can also be used once every 3-5 days.