I was petting Kuro this evening, and found a tough spot on his neck. At first I thought it was a bit of food stuck in his fur and almost decided to pick it out, but thankfully I searched closer and discovered this! I have NO clue how or why he got this. It's bright pink, however it doesn't seem...
I agree with @LTS3 . Purina is pure junk and has been known to be the direct cause of seizures and such if a cat or dog has been living off it. Blue Buffalo and Orijen are my 100% top choices but Wellness and Natures Instinct is fine as well.
When you switch food, add a tiny amount and add more...