There is no need for the protagonist to treat his teammates, as long as he gives them some therapeutic needles when exchanging things with his teammates, the blood of his teammates will drop to less than half in the battle, and they will use the therapeutic needles to return blood themselves.

Besides, robot teammates can't treat themselves.

If your teammate is a corpse like Hancock, you can directly hit him with a gamma gun, and the corpse will return to blood after being irradiated.