The product named Sargeant’s Gold Flea and Tick Squeeze-on for dogs caused my 6-mo old puppy to have irritated, red, inflammed and weeping skin on a large area of her neck. The reaction began about an hour after applying it as directed and began with general restlessness, whimpering, and scratching at her neck. I have since repeatedly washed the neck area with mild soapy water and applied topical products that are vet-recommended for allergic reactions in dogs but it is only showing more widespread inflammation on her skin and is now appearing infected. She has a vet appointment in the morning and luckily, has shown no neurological problems so I think she will survive. I called the Sargeant’s company (part of Hartz) and filed a concern , got a case number, and requested reimbursement for my dog’s medical bills as well as the money back that I spent on the product. It is clear to me that Hartz needs to stop selling this product even if this kind of effect only happens to “some dogs” and is according to Sargeant’s representative, a “self-limiting” condition. My puppy had to suffer because of their negligence and I am furious. I will continue to warn everyone I know about this product and other Hartz products. I also called the EPA but could only leave a message so I hope they get back to me. I encourage everyone involved to take action. I will be seeking out a class action lawsuit on this and other boards.