Han Biao had been afflicted with the Three Corpse Laughter curse, but Liu Mang had finally cured him.
As for the wound, it wasn't deep. He just applied some iodine and covered it with a layer of medical gauze, considering the treatment complete.
Seeing his younger brother on the brink of death and now cured by Liu Mang, Han Tong was endlessly grateful, almost ready to kneel in thanks again.