After the original acne lesion has been resolved an inflamed darkened spot is often left behind known as Postinflammatory Hyperpigmentation (PIH). This is due to increased production of melanin (coloring cells). It can also be cause due to other wide range of stimuli, such as, sun damage, inflammation or other skin injuries.
Before starting any treatment it is important to identify the underlying cause. One of the simplest and best ways is to allow passage of time. Alternatively there are a range of topical products and procedures for person’s who desire active management of the condition. Combination products containing hydroquinone, retinoids and sun screens appear to be more beneficial treatment options.
Lasers like Q-switch also helps with chemical peeling.