通常,人们用涂抹药物霜治疗雀斑,收效甚微,还会留下疤痕。1979年某空军医院成功地采用冷冻疗法治雀斑。即将小型液氮喷雾治疗器中的液氮,轻轻喷在雀斑处,每次作一二十个。冷冻后皮肤会轻微发红,并略有隆起,3~4天后形成薄痂,5~7天痂皮脱落,患处呈淡白色。两周后便与正常肤色相同。 Frequently people use freckles to treat freckles with little success and scars. In 1979, an Air Force hospital successfully used cryotherapy to cure freckles. Liquid nitrogen is about to be small liquid nitrogen spray treatment device, gently sprayed at the freckles, each time for a dozen. Frozen skin will be slightly red, and slightly elevated, 3 to 4 days after the formation of thin scab, scab off 5 to 7 days, the affected area was pale white. After two weeks it is the same as normal skin color.