I have a friend who has been making moxa sticks for almost ten years. Shenjiutang knows many cases. At first, a patient had a bag on him, but later the bag became inflamed and suppurated. At that time, I spread the moxa stick on the wound and burned it. Although I burned a scar, the wound healed without inflammation. It's good to have scars.
So this kind of hot moxibustion is still effective. In addition, there is a saying of scar moxibustion in ancient times, including this kind of moxibustion in Japan now. They are all lit with glory with high purification rate.
Don't use scar moxibustion if it's just a routine regimen or something. Just use moxa stick moxibustion.