I have done microneedling a few times however got it done on last Saturday. The technician used vitamin c serum and did a more aggressive treatment on my areas of scarring (cheeks, jaw). I saw redness on Saturday however in the last two days these areas have turned dark, are cracking and are itchy. I am moisturising my skin using hyaluronic acid and bio oil on these areas. Is this normal? How can i accelerate healing time?