I find that the results really tend to vary on several factors. The overall quality of health of the patient, the condition being treated, the severity of the condition, the frequency of use, and many other little details like these all contribute to the success each person finds with the mat. While some patients get frustrated quickly and declare it doesn't work, others are exuberant over the relief after just 2 weeks are can't stop talking about it. The key that I find is patience. If you have patience, there are very few things that can stop you from getting to where you want to go.