Some people say that the health collar is a psychological effect, while others say it is really useful. In fact, he is more or less useful. But he is a health care product after all. It's not a regular treatment product.
What is said upstairs is quite right. Traction instrument has good curative effect. My cervical spine is not very good either. I used to go to the hospital for treatment. There is infrared hyperthermia. And traction. But stick to it. It will be much more comfortable when it is done. As for the health collar, it can be used as an auxiliary tool.
It is recommended that the elderly look up and move the lower cervical spine. The pillow for sleeping should not be too high. Memory pillows should also help. I'm using it.
I hope it helps!