My guinea pig, Basil has recently developed a little white spot on her ear. She is about two - three months old. I've wipped it with a wet napkin and nothing had came off. There is a little scab I don't know if it's from her scratching or what. She's acting just as he normal hyper exploring self. She does shake her head a little when I touch the ear though. She doesn't do it everytime I touch it. It's hard to get a really good look at it as she it always wanting to explore. Does any one know what it is