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.