Hello In my experience, dairy can definitely cause a flare. I followed the autoimmune diet and once I tried to work dairy back into my diet, I felt terrible and have avoided it ever since. Which to be honest, has been super hard because I love milk, eggs, and cheese. Here is an article that talks more about my experiences in case you are interested. https://psoriatic-arthritis.com/living/dietary-changes-part-1/
Many inflammatory foods can trigger a flare, such as gluten, tomatoes, and sugar (sadly).
-Leanne, Community Moderator