Meet my Max. He's a persian too (flame point) and yes, I have to wash his facie every day. His food dish is a ceramic one that I made and his water dish is a stainless steel bowl. I wash them both every morning. My Max has never had a problem such as you describe but I don't know if it's because of the dishes. I have to wash all around his eyes, cheeks and mouth every day sometimes several times a day. I do find that with my Max, diet played a role. Since I've cut him back on the wet food, it doesn't seem as bad. Wish I could offer more advice.