Why you shouldn't use the massage gun repeatedly in the same place?

The whole purpose of using a massage gun is to reduce your pain.
If you keep the massage gun too long on one spot, the skin can become tender and sore, and you may experience bruising. So too much use of more massage guns isn’t always a good idea.
Now the question is How much is too much?
If your tissue is turning red really fast, that means blood is flowing through it very rapidly. When that happens, we recommend moving the massage gun to another part of the body.
It’s best not to hold the gun in one place for more than a few seconds at a time, and instead move it around slowly.
When to Use a Massage Gun

These machines are revolutionary. And, there are several times throughout the day you will find yourself in need of a massage session.
First, percussion massagers are great for activating muscle groups to improve flexibility and muscle mobility pre-workout. As with stretching, athletes will find their performance is greatly enhanced without restriction of tight muscles.
Additionally, using a massage gun during training will help re-activate muscles. This is especially helpful for areas that are prone to overuse or injury.
Furthermore, a massage gun will completely transform post-workout routines. You can use your massager to increase blood flow and rid the body of lactic acid buildup while relieving tension.
Finally, the benefits of percussion massage marry well with deep relaxation. So, you can use your machine whenever you have nagging muscle tension or stresses.
Regardless, these should never be used on a strain or pulled muscle as it can cause further damage.
How often Should You Use a Massage Gun? (Recomended Frequency)
Whether it’s to boost performance or recover from a hard workout, massage guns should be used in short sessions. Additionally, it’s recommended to use them when needed between 2-3 times a day.
For pre-workout sessions, float the massager over targeted muscles for 30-40 seconds to activate them for the task ahead.
During activity muscles can be re-activated periodically by floating the gun 10-15 seconds over specific areas. This helps with spasms and fatigue to keep muscles ready for action.
Post-workout, athletes can float the massager across any given muscle for up to a recommended 2 minutes for optimal recovery.
As described above, working muscles over 2 minutes may lead to injury or bruising. However, you’ll find this to be all that’s needed to receive any benefit from these machines.
Additionally, most recommended sessions will be between 10-30 seconds on any given area to start. And, there’s no real limit to how long you can use it around the body if you have different ailment areas, just keep it moving to prevent skin sensitivity.