We use this with one of my cats since he has feline herpes. We give it to him whenever his eyes start looking really bad and this helps it clear up right away. This stuff is way better than a pill or powder since it would be challenging to get him to take it that way. With this we can just smear some on his paw or across his gums really quick. It smells like maple syrup and is sticky just like that. The one main problem with it is how sticky it is.