Avoid sun exposure, if there is a cause, try to remove the cause. Chloasma caused by birth control pills should be stopped, but it may not disappear in a short time.
1. systemic therapy, taking a large amount of vitamin c orally, 1 ~ 3g a day, or taking vitamin C2g intravenously. Vitamin C can reduce the deep oxidized pigment to the shallow one, and reduce dopaquinone to dopa, thus inhibiting the formation of melanin.
2. The combination of local treatment, local external use and oral administration has good curative effect.
1% vitamin e cream can inhibit lipid peroxidation caused by free radicals and prevent skin aging and pigmentation.
3. There are many ways to treat TCM with different curative effects. Different patients should be treated according to syndrome differentiation. Liver depression and qi stagnation can be treated by soothing the liver, regulating qi and promoting blood circulation, and the prescriptions include Xiaoyao powder and Chaihu Shugan powder. The spleen deficiency type is modified by Erchen Decoction and Sijunzi Decoction. Kidney deficiency type is modified with Liuwei Dihuang Pill.
Patients with chloasma are mostly kidney yin deficiency, which can be treated mainly with Qiju Dihuang plus Huangbai Chenpi Decoction. Promoting blood circulation and removing blood stasis, soothing the liver and regulating qi, using Xuefu Zhuyu decoction and Ren Tao Siwu decoction.