I can eat goat and sheep cheeses without any problems in very large amounts.
Any type of cow cheese or milk will cause severe cystic acne for me after a few days. Even if it's raw, only animal rennet and European cows. Butter doesn't seem to be a problem.
If you look around acne forums online, cow dairy products is probably the most common trigger food that always comes up. What do you think could be the reason for that?
I make the same observation with milk. Reluctantly so, because I really enjoy milk. However, not so much with cheese. I concluded that whatever is triggering acne in milk is broken down by bacteria or removed somehow.