Vitiligo
Take one catty of dew (preferably dew collected from leek leaves), add 5 grams of snake skin, place in a bottle, bury underground for half a month, then take out and apply the liquid to the affected area, 3 times daily for 1–2 months. Additionally, use 30–60 grams of purslane, decocted into one bowl of soup for internal consumption, twice daily.