Question
I was bitten by mosquitoes on my legs in the summer. After scratching and bleeding, I have quite a few black or red marks left after the scabs fall off. Some of the marks have been there for several years, and some are new this year. What should I do?
Answer
Hyperpigmentation is usually caused by inflammation. Post-inflammatory hyperpigmentation will gradually disappear as the inflammation subsides, and no special treatment is needed. If there are stubborn hyperpigmented areas, appropriate physical treatment methods can be used, such as for freckles. These physical methods usually involve laser devices, such as pixel laser, picosecond laser, or regional medications, for targeted spot removal.