I think it is direct result of poking him for his BG.
They are right along the rim of his ears where we poke for his BG.
It is just like a hard bump under the surface.
Not red or sore or anything. It almost feels like acne that has not come to a head.
It is not a pimple though.
u use neosporin? helps heal the ears..might help to rotate the poke area, so u dont poke the same spot all the time, and alternate ears sometimes helps too.