Fraxel for tattoo removal hypopigmented and raised scar?

Hi. I have a raised and hypopigmented scar on my arm and did two sessions of Fraxel dual to smooth the scar and blend the colour. The second session was three weeks ago and I didn't see any improvement on the colour and the scar is even more raised. Does anyone have ever seen any improvement with Fraxel on this kind of problem? Because I believe most of the doctors I've been with only suppose that it can improve the scar but didn't see any effective results. Thanks, Helena

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