Black lines after forehead crush injuries can gradually fade, as long as there is no obvious scar formation, most of them can be gradually reduced through daily care and appropriate medication.
Inflammation will occur around the forehead after the forehead is squeezed, and the inflammation will lead to pigmentation in the process of receding, causing the formation of black lines.
Usually pay attention to facial cleanliness, avoid repeated stimulation of local skin, appropriate massage, avoid excessive sun exposure, in addition to local application of drugs to promote pigmentation (hydroquinone cream, etc.), just simple black line formation, most of which can be gradually faded.
If the extrusion injury is obviously accompanied by the formation of scarring most of the pigment will still have part of the residue, want to further treatment can go to the dermatology department, under the guidance of the doctor for standardized treatment.