What if the scar turns black after bruising?

Scar blackening after abrasions, this phenomenon may be caused by pigmentation after inflammation. Under normal circumstances, can be local external application heparin sodium allantoin cream, etc. to alleviate; can be external application silicone gel or is external application asiaticoside cream ointment treatment. Of course, some patients form this change does not subside for a long time, can take physical treatment methods to alleviate, such as injection of water light needle way to alleviate treatment.