Folliculitis melanosis, also known as post-inflammatory hyperpigmentation, is due to the stimulation of local inflammatory response, resulting in the aggregation of melanocytes, generally self-healing, the clinic can also be taken as daily protection, laser treatment, topical medication and other ways. 1. Daily protection: eat a light diet, avoid eating photosensitive food; pay attention to local cleanliness, to avoid the recurrence of folliculitis; should be strictly sunscreen, because sunlight can induce the proliferation of melanocytes. 2. Laser treatment: non-exfoliative carbon dioxide laser can be used to promote melanocyte regression; photorejuvenation, picoseconds and other lasers can also be used, through the specific wavelength selective photothermal effect of pigment particles, promote its metabolism and absorption to achieve the effect of lightening hyperpigmentation. 3. Topical medication: Commonly used medications such as niacinamide, azelaic acid, etc., can inhibit melanocyte production; hydroquinone cream, etc. can accelerate the absorption of pigment. The above treatments should be used under the guidance of specialists to avoid blind self-treatment to avoid adverse consequences.