Bests & Worsts Reviews from Amazon

I know a lot of people recommend this, but I wanted to share our experience with it. I applied it to my dog (he is a 51 lb adult wheaten terrier) and at first it seemed to not bother him at all. About 8-10 hours after applying it he started to act very anxious and kept trying to chew his tail thinking he could scratch his back that way. He was very restless the night after we used it so I decided to use a small amount of dawn dishwashing liquid to try and wash it off the next morning and he instantly relaxed as I was bathing him. I inspected the spots where I applied it on his back and it had left little scabby hive-like places everywhere it had touched his skin. I contacted bayer and they told me that irritation like this is normal and could last up to 48 hours. I would have never bought it if I knew that was normal. My boy was clearly irritated and in pain from it so I wasn't going to leave it on him. We'll be switching back to his oral flea meds. I feel like Bayer needs to be more open and honest about the potential side effects of this because I couldn't find anything about what my dog went through listed on the bayer website. He might just have super sensitive skin I'm not sure but I wouldn't risk using this ever again.