A red pimple on the face may be associated with boils and hemangiomas. The localized black color is related to the further aggravation of infection and the rupture and bleeding of blood vessels, which need to be treated with anti-inflammatory and hemostatic drugs. 1. Skin boils: in the acute stage, there will be obvious redness, swelling and pain, and even deep abscess may be formed, in the case that the infection is not effectively controlled, the local tissues may be necrotic and show black color, and anti-inflammatory medication should be chosen for treatment, such as oral erythromycin capsule, topical mupirocin ointment, and so on. 2. Hemangioma: under the influence of excessive stimulation, the tumor will lead to rupture of blood vessels and bleeding, in the case that the blood is not discharged, it will be stagnant and appear black, firstly, ice can be given to stop the bleeding, and secondly, the blood can be discharged through incision or puncture, and so on. Due to improper operation is likely to lead to facial skin tumor scars, affecting the aesthetic, so be sure to choose a regular medical institutions, and under the guidance of the doctor standardized treatment.