My 10 year old Persian Cat (female) developed a sore over her left eye. About 4 months ago I noticed a small pimple like sore over her eye. It has continued to grow (see images) over time. The sore doesn't seem to have an affect on her behavior. I can touch it, and she doesn't recoil or indicate any pain. She doesn't scratch it or rub it. Her eating habits are the same, and she is playful and seems happy.
Is the sore a major problem, or a pimple or wart or such, and will go away on it's own. Or is this something I can treat myself with peroxide, a hot compress, or ointment. I don't have a regular vet as my previous vet (who was a personal friend) moved out of the country. If you think the problem is severe, although the animals behavior doesn't point to that scenario, I'd appreciate anyone's input. You can also email me at emloveman@gmailcom.