How do boric acid with bulb in the ear atomized?

It is generally known that boric acid is viewed rather negatively lately, but for exceptional cases it still seems to be the resort after the NKO doctor tried everything.  

Simply put boric acid powder in a nose dropper vial where you can push the side. That atomises the boric acid powder very finely in the ear. Of course, it is important to dispose of fine boric acid powder; Seven is worth considering. A small amount of SiO2 coll (see Filler for capsules TMF) can improve the yield properties.