Methylcobalamin and ginkgo biloba are not generally used in the treatment of vitiligo and should be used as prescribed. 1. Methylcobalamin is an endogenous coenzyme B12 and is used in the treatment of peripheral neuropathy. Adverse reactions include loss of appetite, diarrhea, nausea, vomiting, and rash. Methylcobalamin is contraindicated in people who are allergic to methylcobalamin. 2. Ginkgo biloba has the efficacy of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), and clearing collaterals. It can be used for chest paralysis (chest pain) caused by blood stasis, stroke, strong tongue, speech, hemiplegia (one side of the limb can not move freely); cerebral infarction, coronary heart disease, stable angina, see the above evidence. Ginkgo biloba adverse reactions occasionally have stomach upset. Allergic to the product is prohibited. Therefore, methylcobalamin and ginkgo biloba tablets are generally not used in the treatment of vitiligo, the presence of vitiligo, should actively seek medical attention, standardized treatment under the guidance of the doctor, so as not to miss the condition.