There are many precautions to be taken after the pupil line is done, such as avoiding touching water, avoiding excessive eye use, avoiding make-up, avoiding food and so on. 1. Avoid touching water: After the pupil line is done, keep the area clean and dry, and avoid touching water for a short period of time to prevent infection. 2. Avoid excessive use of eyes: after the pupil line is done, let the eyes get enough rest, avoid prolonged use of eyes, so as not to aggravate the phenomenon of eye edema. 3. Avoid make-up: during the recovery period after the pupil line is done, you need to avoid local make-up, so as not to stimulate the cosmetics to the local area, causing local infections. 4. Dietary taboos: After the pupil line is done, you need to avoid spicy and stimulating food, and the diet needs to be light. Pupil line has a lot of precautions, should strictly follow the doctor’s instructions to do a good job of care, if there are symptoms of discomfort, it is recommended that timely medical treatment, follow the doctor’s instructions to take standardized treatment.