Skinoren and pulsed dye laser - Is it okay to continue my azelaic acid cream?

Hello, I am having a patch test in a week's time for pulsed dye laser treatment. The clinic carrying out the treatment hasn't mentioned the need for me to cease using my prescription azelaic acid cream beforehand. I just want to check that this is correct, as I obviously don't want to sensitise/harm my skin. Many thanks in advance.