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There are a few sittings to be completed before the laser takes effect, not just in one sitting. Have you tried using hydroquinone
based skin bleaching creams. If there is no relief even after the laser treatment
you may need to try skin grafting
to remove these scars and pigmentation. What you are using are steroid
creams which will not change the scar much and will also not reduce the pigmentation. Eat plenty of fresh fruits and green leafy vegetables. Drink plenty of water. Avoid sun exposure which will darken the spots.