At present, the common ways of treating freckles are general treatment, physical treatment and medication, etc. However, medication may lead to pigmentation disorder or scar, which is not recommended. 1. General treatment: freckles belong to autosomal dominant hereditary disease, which may be aggravated by sunlight and other factors, and generally will not affect the health of the body, and generally do not need treatment. If you are self-conscious of the effect on aesthetics, you can use cosmetic products to cover it up and pay attention to the measures of sunscreen, such as applying sunscreen, wearing sun hat, etc., so as to avoid aggravation of the symptoms. 2. Physical treatment: laser treatment is a commonly used treatment in clinic, which is based on the principle of selective photothermal effect to make pigment particles burst instantly without damaging the nearby tissues, reducing the chances of scarring, but the treatment can not prevent recurrence, and should be strictly protected from sunlight after laser treatment; liquid nitrogen freezing is also effective in treating freckles. 3. Medication: Using trichloroacetic acid, phenol and other medicines to spot-coat, so that the local epidermis of the pigmentation spots can be peeled off to achieve the purpose of treating freckles, but the depth and scope of the treatment are not easy to grasp, and it is easy to cause pigment disorder or scar formation, so it is not recommended to use it. It is suggested that patients who need to treat freckles should go to regular hospitals and choose the best treatment method under the guidance of specialists, avoiding the use of drugs privately, which may lead to the occurrence of adverse consequences.