How long should I wait to know if hypopigmentation after laser hair treatment will be permanent? (Photo)

I used a personal laser hair removal device with 475-1200nm. It seems I used a setting that was too high in an area of my legs. It scarred and healed just fine but what I found was that I was left with white spots where I had used the laser. It's now been 5 months since it occurred and the scars are still there. I have avoided the sun and used protective layering. Should I wait longer or is it time I head to the dermatologist for color correction?