Article in English: Use any clean, dull scraping tool: a toothpick, a fingernail, a file, or the blunt side of a knife. Rinse your skin with room-temperature water once you've cleared most of the henna paste. Avoid using soap on the fresh henna. When your skin is clean, pat it dry. Then, gently moisturize the design with oil or lotion. Try not to get the area wet for at least 6-12 hours after paste removal, although the effect will be even stronger if you wait a full 24 hours. Water can interrupt the oxidization and darkening processes of your henna stain. Once you've exposed your skin and cleaned off the dried henna paste, you'll be able to watch the ink mature into its fullest form. Your design should begin in a shade of orange ranging from bright neon to the color of a pumpkin. Over the next 48 hours, the stain will deepen into a rich, red-brown color. The markings will end up somewhere between orange-brown, maroon, and chocolate brown. Your design will be at its darkest within a day or two of its application. The final color hinges on your skin type and your body chemistry. The ink usually looks darker on hands and feet.

Summary in Chinese:
6到24小时后刮掉变干的海娜膏。 接下来的24小时内，禁止纹身部位接触香皂和水。 观察纹身颜色变深的过程。