Freckles are an autosomal dominant disease, that is, as long as one parent has freckles, the children will have freckles, only the severity is different. Therefore, the treatment of freckles is difficult, and it is hard to eradicate them. Now we have introduced the new American Emerald Laser, which is very effective in treating freckles. As long as the patient is not exposed to the sun frequently, the treatment can usually last for about 5 years. Before treatment, you can rub numbing medicine externally to reduce pain, and after treatment, you can apply repair mask externally to promote recovery, avoid sunlight for a week, and then you can live a normal life after the scabs fall off, which usually takes about a week.