There are many types of laser treatments, photorejuvenation can usually be exposed to water for 7 days, while carbon dioxide laser and erbium laser can only touch water after the scabs are removed, which usually takes about 14 days. Laser treatments include such as photorejuvenation, carbon dioxide laser, erbium laser, etc., which have better effects on pigmentation and scarring. Due to the different types of lasers, how long can you touch water after laser treatment is also different. If it is photorejuvenation, you can usually touch water after 3-5 days. In the case of carbon dioxide laser, erbium laser, etc., you can usually touch water only after the scab is removed, which may take about 14 days or even longer. In addition, as each person’s situation is different, if the pigmentation or scarring is heavier, the energy selection of the laser treatment is slightly higher, which will lead to heavier skin damage and delay the recovery time, then the time when you can touch water will also be delayed. After laser treatment, it is important to pay attention to local care on a daily basis. When you go out, you should do a good job of sun protection, wear a sun hat, sun umbrella, etc. At the same time, you should pay attention to diet, eat less spicy and stimulating food. If there are abnormalities after laser treatment, it is recommended to go to the regular hospital for follow-up examination to avoid adverse consequences.