How can I heal necrosis after my tummy tuck?

necrosis usually occurs in the midline and can lead to separation of the wound. you  have the typical findings of black, hard, dry shoe-leather skin.  my concern is the drainage and greenish color. it is time to debride (remove dead skin) and wash out.  even colonization (not quire infection but bacteria present) can extend the zone of necrosis and lead to more tissue loss. intervention generally speeds recovery and allows the loss of tissue to be minimized. see you doctor. good luck 

This looks like a small area of skin necrosis which can happen because of numerous reasons.  It will probably heal on its own and may need a scar revision down the road.