The laser can enter the lesion smoothly, and the dye is gasified and crushed under the action of powerful laser during treatment, which makes the tattoo color fade. This retrogression will be seen at that time. Generally speaking, superficial treatment is effective once, or even completely eliminated, but most of them need multiple treatments.
It depends on the size of your tattoo to decide whether to wash it by laser or surgery. I suggest you go to the hospital for a checkup.