Dermatologist Misdiagnosed My Lupus Rash as Rosacea

My rheum sent me to a dermatologist for a punch biopsy of my butterfly face rash to confirm it’s from lupus and for a punch biopsy of my scalp to see if that’s lupus or lichen planopilaris. The derm came in the room and sat on his stool and told me it was rosacea without getting up from the stool to look at my face or scalp and didn’t look at any of the pictures I brought of my face rash through the years and he barely flipped through my file of blood tests I brought. No punch biopsies either. Do I go back to my rheum and tell her all of this or do I find a new derm who will actual listen and examine me??