You have been treating an 86 year old male with DM for two w…

You have been treating an 86 year old male with DM for two weeks with a leg wound caused by hitting a coffee table and resulted in a skin flap tear, where the flap necrosed. You have appropriately prepared the wound bed and the wound is now 100% red granulation tissue.  It measures 4.2 x 3.6 x 0.2 cms.  There is no odor, minimal serous drainage, and no pain.  The patient has no significant comorbidities.  How would you cleanse this wound?