If the skin feels very dry by day 3 you can apply a very thin layer of Aquaphor Healing Ointment (you can find it in any grocery stores in the kids section). Do not apply too much to avoid adverse reactions. Wash your hands before applying the ointment.
AVOID water (for the PMU area), makeup, excessive sweating, sauna, pools, sunbathing, do not PEEL the scabs at all (you may cause scarring).
Do not apply anything beside Aquaphor ointment such as Vaseline, antibiotic creams, Neosporin etc. Grapeseed oil may be used to substitute Aquaphor.
During 4 weeks after the procedure it's better to not use creams that contain acids or ingredients that will lighten or exfoliate the skin.