Facial blemishes can generally be improved by oral vitamin C, vitamin E, tranexamic acid, etc.; the specific dosage and course of medication is recommended to patients under the guidance of the doctor. 1. Vitamin C: Vitamin C can inhibit the redox reaction and improve the spots and plaques formed by melanin deposition. Contraindications: Pregnant and lactating women should avoid using it as much as possible. Adverse reactions: long-term use in large quantities can lead to stones, diarrhea, headache and other adverse reactions. 2. Vitamin E: Oral vitamin E can promote the antioxidant effect of vitamin C. Contraindications: those who are allergic to its drugs. Adverse reactions: headache, nausea, blurred vision, xerostomia, fatigue. 3. Tranexamic acid: Tranexamic acid spot removal principle promotes the decomposition of melanocytes and also helps to inhibit the formation of melanocytes. Contraindications: allergic to the drug or patients who are using thrombin. Adverse reactions: loss of appetite, nausea, vomiting. For patients who want to get rid of spots through oral medication, it is recommended to go to a regular hospital and use the medication under the guidance of a professional doctor.