Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Frontline works well

It's very easy to use but keep off your skin: just place the drops on your cats skin between it's shoulder blades or upper back and it lasts for a month. The Frontline Plus also kills the eggs and larvae to end the flea cycle,where regular Frontline doesn't. So, spend the extra money on the Frontline Plus instead of just the regular Frontline. It is worth it. The price for Frontline Plus on this sight is a good price. Frontline Plus is the best flea control medicine I have ever used for my cats. I had a cat that I could never get rid of the ear mites despite costly vet visits to clean it's ears, but when I treated my 2 cats for fleas with the Frontline Plus, surprisingly it also kills the mites, they say but I have not confirmed that.