How long will the patient’s face fade after knocking the green, according to the patient’s face, the severity of the injury is different, their own healing ability, whether to take active treatment after the injury and other factors for objective analysis: 1, the face of the knocking the green to a lesser extent, the scope of the local damage is small, the healing ability of their own strong, after the injury to the local ice compresses in a timely manner, to promote the contraction of capillaries, combined with the blood circulation of blood circulation and stasis cream rubbed orally bruise pills, Sanqi tablets and other drugs can improve the local soft tissue blood circulation, in 3-5 days after the gradual absorption, subside. 2, if the face bump bruise range is more extensive, soft tissue damage is serious, and the patient combined with hypertension, diabetes and other basic diseases, their own healing ability is poor, the patient is not given timely symptomatic treatment after the injury, the bruise absorption time is longer, and part of the patient often need 14-21 days to be able to completely subside. Some patients often need 14-21 days for the bruise to completely subside.