What is involved in PicoSure laser aftercare? Do I need to apply ointment?

I just had a session of a PicoSure laser to remove my tattoo. I was told that I don't need any ointment on the area and to ice it for a few hours but I am worried that I do need to apply ointment and put a bandage on it because I have seen other companies do so. Also, I am wondering why there was no frosting this time? I had two sessions of a Fotona QX MAX laser before the PicoSure laser. Thanks!