I noticed on Sunday that Maggie's ear was very pink almost red. Half of her ear is white and I know white cats are more prone to sunburn. My cats do not go outside, but she does spend much of the day in the window. Her favorite spot during the summer is on top of the airconditioner that faces due west. The only thing between her & the outside is 2 pieces of plexiglass. I'm wondering could her ear have gotten sunburnt? And if it did where do I find sunscreen I can use on her ears?