Hereditary freckles in girls refer to the freckles caused by hereditary factors, which can generally be removed by medication, physical therapy and general treatment. 1. Medication: If girls’ hereditary freckles are relatively light, adapalene and nitric oxide solution can be applied externally, which can effectively alleviate the symptoms of freckles as well as lighten the pigmentation. You can also apply trichloroacetic acid solution, phenol and other drugs, which can achieve the effect of local epidermal peeling. 2. Physical therapy: if the area of hereditary freckles of girls is relatively large, it can be treated by strong pulse light, which can instantly blast pigment particles and avoid damaging the normal skin around, so as to achieve the effect of treating freckles. 3. General treatment: girls with hereditary freckles need to do a good job of sun protection in daily life and reduce the exposure to ultraviolet rays to avoid aggravating the symptoms. Because ultraviolet rays can activate the basal skin and the enzyme complex, without paying attention to sun protection, ultraviolet rays will deepen the skin pigmentation, thus aggravating the pigmentation of freckles. If girls have hereditary freckles, it is recommended to go to the dermatology department of regular hospitals in time, and choose suitable methods for treatment under the guidance of doctors. When using medication, it is necessary to follow the doctor’s prescription to use medication, not blindly apply on their own.