How to remove hypopigmented keloid on nose: I underwent 2 Fraxel sessions, I have 2 sessions left, should I proceed? (Photos)

My scar from three years ago is partly raised and partly depressed. I already asked initally here but since photo was too light, A Dr. only gave general ideas about flatenning and addressing pigment issues. I underwent 2 fraxel sessions that I think made my raised scar even more apparent, but the depressed area became better. Still have 2 sessions left, should I proceed? Also,what are the other options I have? Is it mandatory to have them done as soon as possible?