Why does liquid nitrogen freckle make the skin black?

Anti-blackening after liquid nitrogen freckle is due to pigmentation of skin after liquid nitrogen freckle. Anti-blackening caused by this reason will automatically recover after a period of time without additional treatment. As for the recovery time of anti-triad, it varies from person to person.

There is a problem of preventing blackening after operation. Although there is no need for additional treatment, we should pay more attention to drinking water, avoid direct sunlight and eat less spicy and irritating food, which is conducive to regression and recovery.

Liquid nitrogen freckle can selectively act on different skin tissues. As long as a specific light source is used, it can be guaranteed that it only acts on stains and will not affect normal skin tissues. The freckle-removing energy of liquid nitrogen can be absorbed by the pigment particles in the focus in a very short time, resulting in extremely high temperature, which makes it expand rapidly, form micro-explosion, produce vaporization and crush into tiny particles, and then be swallowed up and removed by macrophages in the tissue.

Matters needing attention after liquid nitrogen freckle removal:

It is not advisable to do strenuous activities and make-up before the scab falls off, and do not tear off the scab forcibly.

After operation, sterile gauze was placed in the treatment area and applied with ice pack for 30 ~ 60 minutes.

Keep the treatment area clean and dry, and do not touch water before local scab to prevent infection.

After half a month to half a year of treatment, we must do a good job in sun protection. Apply suitable sunscreen indoors and strengthen sun protection outdoors.

After the operation, the skin needs hydration.