Is it reasonable to continue trying lasers if I've previously responded poorly?

I've had a couple different series of lasers at different points and the results have been non existent at best. ScarFX laser gave me a massive greenish scab. Fraxel and VBeam together made my scar cracked, red and raised. (This was potentially because of being instructed "no aftercare"). At this point, should I just give up on lasers altogether or could resurfacing a scar still be a possibility if I find the right laser?