Will this very white breast augmentation scar by my nipple go away? (photos)

You Underwent a combined procedure with tightening of the skin of your breast.  It appears that there was some delayed wound healing in this area which led to scar tissue.  It appears that the tissue in this area remains tight and may be under some tension at this point still.  Ideally a scar revision would be needed but you must have enough laxity in this area.  Consult a board certified plastic surgeon to discuss treatment options.  Its unlikely that any type of cream will help at this point. 

The white scar is caused by deep pigmentation following your surgery.  At this late date it is unlikely to change.  A scar revision certainly is possible and in my opinion will give you a better result than tattooing.