Lateral incision scab fell off and now it’s raw. Does this look okay? (photos)

This is a very common site for delayed healing as it is where the inner and outer 'flaps' of breast tissue and skin come together under tension.  It should go on to heal over the next 3 - 4 weeks on its own, but needs a dressing to allow it to heal.  Occasionally there is a retained suture at this area which needs to be removed to allow this area to heal.  You should check with your surgeon to be sure there is not a retained deep stitch.

You have a small area of dehiscence or opening on the left breast. This should close with conservative treatment. You should follow up with your plastic surgeon.