New brown spots after lasers

Question: I had threeforme laser and it got rid of 90% of my age spots. My face looks great so it worked. My 3rd and last treatment was Dec 26,2018 and now I I've got 4 spots all of a sudden in same place that was lasered.I've been using Obagi c rx system c-clarifying serum with it c10%,hydroquinone 4% since March 1st but it's not helping. I don't want to pay another $4,000 for lasers so what can I get to get rid of those few that's came back. And no I do not go out in sun anymore and I wear spf 70 so that's not causing it. But I did just turn 40,? ? Maybe that's why lol. So could I get a chemical peel or a lotion,or serum?

I would recommend the brand Sunday Riley , their C.E.O. Brightening Serum followed by C.E.O. Vitamin Rich Hydration Cream for your night regimen I would recommend their C.E.O. Glow Vitamin C + Turmeric Face OilAll of these products will help with all your skin care concerns.I hhope this helps, have a nice day! Cyndee, Dermstore Esthetician