There are basically no great side effects of picosecond laser spot removal, but there may be repeated cases. 1.Usually, when you use laser treatment to remove spots, the scabs will come off in a week or so, and many red pits will be left on the affected area of the skin, you can apply ointment under the advice of the doctor, and it will return to normal after a period of time. 2.The success rate of laser spot removal is relatively high, and it can remove pigment spots, but it is likely to be repeated because it can only remove the existing pigment spots, but not prevent them from appearing again, so it is necessary to do a good job of sun protection and maintenance after treatment. 3. Basically, there is no side effect with this method, but of course, it must be established that the quality of treatment and post-operative care are proper, now when the treatment is first started, you must pay attention to the diet, do not eat some food with high pigment content to prevent pigmentation. In order to prevent infection, you must go to a regular plastic surgery hospital for treatment, and after the surgery must follow the doctor’s advice to do the right care, so that you can try to avoid the occurrence of side effects.