Whether a tattoo can be completely washed off depends on the color and pigment of the tattoo. The Q-switched laser currently used is better at removing black and blue, but its effect at removing red is relatively poor. If the tattoo design is a colorful flower, the tattoo cannot be completely washed off. If the tattoo pattern is just fonts or a single blue and black color, laser can remove it relatively cleanly.
It is recommended that beauty seekers go to the plastic surgery department of a regular medical institution and have an experienced doctor interview and decide on a specific treatment plan based on their own situation. Never buy your own medicine to remove tattoos. Not only may it not be removed, but it may also leave large scars.