Purple acne marks can be eliminated through medication and physical therapy as prescribed by your doctor. For those with purple acne marks, they can be improved by topical application of retinoids such as isotretinoin, tazarotene, adapalene, etc. Some patients can also be treated with arbutin, levitamin C, benzoyl peroxide, etc. as prescribed by their doctors. Some patients may also be treated with chemical exfoliation as prescribed by the doctor, and commonly used drugs include 25%~30% salicylic acid, 20% ~70% fructic acid, and so on. In addition to medication, some patients can seek medical treatment with fractional laser, intense pulsed light and other physical therapy, which can also help to improve the skin condition. It is recommended that people with purple acne marks should follow the doctor’s instructions to use medication, and should not use drugs or prescriptions on their own, in order to prevent deepening of acne marks or inducing skin infections. In daily life, patients should pay attention to local skin cleaning, moisturizing and sun protection.