Post-inflammatory

Conception

During acute or chronic inflammation,pigmentation occurs on the skin.

Clinical feature

1. It occurs on the skin after inflammation;
2. The color is brown, even black;
3. It will appear patch or spot according to different inflammation part, area and shape;
4. Not elevate the skin surface, no symptoms but with self-healing tendencies.
5. Relation with sunshine and season. The spot size mark on the leg.

Histopathology

It is caused by the melanocyte activity strengthening in the basal layer of epidermis.

Method of treatment

1.The key treatment is to control the inflammation.
2.Avoiding the solarization.
3.Apply the 1-4% hydroquinone cream on the treatment part outside, 2 times per day.
4.Advise to use Q-Switched ND: YAG laser (1064nm)(single pulse above 350 mj)separately or matched with Q-switched laser 532nm. And choose the proper energy density (the proper spot) to quickly realize the pigment disappearance.