Splashed by the oil skin turned brown consider the occurrence of hyperpigmentation, it is possible to remove, usually using laser treatment, topical drugs, systemic medication. 1. Laser treatment: Pulsed laser dye and intense pulsed light can be used to fade brown marks. Non-exfoliative and exfoliative fractional lasers can also be used to treat brown marks. In addition, Q-switched large-spot low-energy lasers are also effective in treating brown skin pigmentation. 2. Topical medication: 2%~5% hydroquinone cream, 15%~20% azelaic acid cream, compound arbutin cream, 4% tretinoin, etc. can be used to lighten skin pigmentation. In addition, you can also use retinoic acid cream, by affecting melanin metabolism, thus reducing hyperpigmentation. 3. Systemic medication: Oral vitamin E, tranexamic acid, vitamin C. If the pigmentation is dark, large doses of vitamin C can be used for intravenous treatment. If you are splashed with oil and your skin turns brown, you can go to a regular hospital to receive standardized diagnosis and treatment, and the above drugs should be used according to medical advice.