Pimple marks on forehead may be black pimple marks, red pimple marks as well as scarring (including atrophic scarring, hyperplastic scarring, etc.), which can be removed by medication, injections and fillers, laser treatment and other ways. 1. Black acne marks: If the acne marks on forehead are black acne marks, hydroquinone cream, azelaic acid and other drugs can be applied externally, which can inhibit the synthesis of melanin and have the effect of lightening and eliminating acne marks. 2. Red acne marks: If red acne marks appear on the forehead, patients can use products with soothing and anti-inflammatory ingredients, such as dipotassium glycyrrhizinate, allantoin, erythromycetin, etc., which can soothe the skin, reduce inflammation, and help prevent and improve the red acne marks. Intense pulsed light and pulsed dye laser can also be used to help shrink microvessels and improve local symptoms. 3. Atrophic scarring: For people with atrophic scarring on the forehead, microneedling, fractional laser and hyaluronic acid injections can be used to help improve atrophic scarring. 4. Proliferative scarring: local injection of a small amount of hormonal drugs such as tretinoin solution and other treatments such as pressure therapy or freezing methods can be used. For people who want to remove acne marks on forehead, it is recommended to go to a regular hospital to consult a doctor and choose the appropriate treatment under the doctor’s guidance.