Tips to lighten freckles are not scientifically relevant. To lighten freckles, general treatment, drug treatment and physical treatment can be chosen under the guidance of doctors. 1. General treatment: patients need to strictly protect themselves from sunlight and try to avoid going out at noon or in the afternoon when the sunlight is strong; when going out, they can protect themselves from sunlight by using parasol, sunscreen, sun hat, etc.; they can use some facial concealers and whitening cosmetic products to cover up the freckle areas. 2. Medication: 3%~5% hydroquinone cream, 0.1% retinoic acid ointment and other medicines can be used locally under the guidance of doctor to reduce the color of pigmented spots; trichloroacetic acid solution and phenol can be used to corrode the local spots and lead to the stripping of local epidermis of freckles, which may lead to scarring or pigmentation disorders, so it needs to be used cautiously. 3. Physical therapy: laser treatment is relatively safe and effective, and is a commonly used clinical treatment. After treatment, patients should take good care of themselves, such as keeping the traumas clean and dry, and following the doctor’s instructions to take medication, etc., which generally will not leave any scar. It is suggested that patients who need to lighten freckles should go to regular hospitals and choose the best treatment plan under the guidance of doctors in order to achieve ideal results; it is not recommended to take some “small tricks” and “partial remedies” for treatment in order not to cause adverse reactions.