Hello,
Thanks for posting your query.
There is nothing to be worried about.
Scar is difficult to treat as compared to
hyperpigmentation. Your scar has gone. For initial few days after
laser treatment, redness is expected.
You can apply
hydrocortisone cream over the area.It will decrease erythema and inflammation.
Hope I have answered your query.
You can apply
aloe vera , skin lightening creams.
visit to your doctor for so that some topical treatment may be started to prevent pigmentation.
Wishing you good health.
Regards.