Can fractional laser on the neck cause thyroid cancer?

This looks as if you have facial calcinosis that doesn't respond to lasers.  I suggest if you have active acne you go on isotretinoin to completely resolve the acne and then start to treat scars and pigmentation with lasers, peels, and skin care. Best, Dr. Emer.

These can be done on the same day by an expert.  I suggest you see someone with an expertise in doing combination therapy.

Fractional laser is an amazing and highly effective treatment in our office. We use the laser treatment to help with acne scars, large pores, fine wrinkles, tissue collagen loss, scars, sebaceous hyperplasia, active acne, and for brightening dark pigmentation. Although there are very strong...

Fractional non-ablative treatments usually lead to little or no peeling (sounds like what you had done).  Usually, swelling and erythema are present for 2-3 days.  There can be a slight peeling after about a week in some patients who are treatment naive.   Fractional non-ablative treatments can...

Please see an expert to find out more about improving your skin quality and stimulating collagen with lasers. How many treatments are necessary depends on patient need. Best, Dr. Emer

I would recommend more resurfacing treatments with appropriate pre/post skin care treatment including retinol and hydroquinone.  I would personally use a fractional CO2 laser with conservative settings, but others may recommend non-ablative lasers which are good options as well.