Has anyone's dog had a bad reaction to Front Line Plus? Front Line Plus was applied to 3 of my dogs, it was applied by smearing the contents all across the dogs backs, not applied correctly in 1 spot by shoulder area. All three dogs ended up with 3rd degree chemical burns, all the hair and skin came off. This happened about 6 days after application. I am trying to find anyone else that may have had any bad reaction to Front Line Plus