When dealing with a dog behavior issues, the options usually include training, often including some sort of equipment or tools; and, for some problems, medication.
No matter which combination you choose, thought, there’s also time. There are no quick fixes. A single consultation with a dog trainer is not going to transform your dog.
I have recently talked with dog owners dealing with significant issues: Severe anxiety in one case and high prey drive in two other cases. All of the humans are deeply committed to their relationships with their dogs and willing to work toward a solution.
Though I don’t love the idea of medicating a dog to address a behavior issue, in the case of severe anxiety, I think that might be needed. If a dog is so anxious and quick to respond to whatever is triggering her anxiety, the right medication might be able to take the edge off of that anxiety and get the dog into a state where training is possible. I suggested that this person talk with her dog’s vet about options.
Tools or equipment for controlling a dog or getting her attention won’t help if the dog is not able to focus on anything but the trigger. And aversive equipment like a slip collar (or worse, a shock collar) would simply make things worse by adding a painful negative association to the already terrifying trigger.
I do not think that medication alone is a solution; the dog can learn new ways to respond to a trigger. The medication is a crutch to help get her there, allow her to focus on training. Depending on the dog, the trigger, and the level of anxiety, it’s possible that the dog won’t need the medication after training.
Prey drive is a tougher issue. I’m not aware of any medications that would help here. I think this is a question of a lot of behavior modification work, along with lifelong management of the dog’s environment to avoid letting the dog chase and catch a prey animal.
In these two cases, I suggested that the humans find trainers with experience dealing with high prey-drive dogs and who use tools and training approaches that they, the owners, are comfortable using on their dogs.
The training process can take a long time — weeks to months — and you’re never going to eradicate the dog’s prey drive. You might get to a point where the dog behaves in a way that you can live with, but you’ll always need to be aware of the triggers, whether it’s squirrels, cats, cars, or (worst case) “anything that moves” and be prepared to manage the dog’s response.
I have a lot of respect and admiration for these dog owners who each really want to do the right thing for their dog — and who are investing time, effort, and significant money in working on significant problems. They are all examples of the best of the dog-human relationship.