Yes! I'm a professional dog trainer and have knowledge of and experience with pressure wraps. I use them frequently in my work with fearful dogs.
It is important to understand that the Thundershirt is a later introduction, a knockoff if you will of the the original Anxiety Wrap that came out in 2001, eight years prior to the marketing of the Thundershirt.
The Anxiety Wrap is a much better made and more effective product. It has been shown in clinical studies to be highly effective in reducing anxiety. In my own practice I have never seen it not work.
In addition to being a professional dog trainer, I am a registered nurse and have worked with people with autism in one of my most recent positions. We know that pressure works to calm people with autism, much like it does animals, based on the work of
Dr. Temple Grandin. The Anxiety Wrap is unique in a number of ways, but one way is that it works both through acupressure and
maintained pressure.
It is important to use it as directed by the manufacturer, however. Usually I recommend that people consult a veterinarian and qualified professional trainer, preferably one who is familiar with the product rather than just getting the Anxiety Wrap and hoping it will be a solution to whatever ails their dog, but in your case I think you will see an improvement with just the wrap. I would still recommend consulting a qualified trainer or behaviorist to assist you with any anxiety issues your dog is having.
Read this
article I wrote for information on how the Thundershirt compares to the original Anxiety Wrap. While the Thundershirt, that fits pretty much just like a snug fitting dog jacket, undoubtedly has some effect, it has not got near the therapeutic effect of the original Anxiety Wrap.