Eye infection

So I have a 3 year old chinchilla and a month and a half ago his right eye started to lose fur and got pink really quick. I did some research and i found out that it was an eye infection. I went to the pet store and told them about the situation and they suggested me to buy a colloidal silver solution, which is supposed to contain water and silver. They told me to apply 2 drops every morning and night for a week or so. It’s been two weeks and nothing changed, i don’t know what to do. Any...

Eye infection