Frontline Cat/kittens

I had used this product for a year, and had noticed that every time I applied it, my cat would squint her eyes and sniff badly. I didn't think much about it because it went away within an hour or so of application....but then after one application she developed a huge bald spot at the application site. I ended up having to switch to Advantage....we'll see if it does any better for her.

Pros: Keeps fleas off

Cons: It irritated my cat's skin and caused a bald spot

This product has always worked excellent for me. My cats go outside during the summer months, and we have a lot of ticks. I never find any on them.

Pros: it works

Cons: price