We have recently adopted a boxer female from the local humane society. Being a ex-vet tech, i know they come with issues. She is crated during the day in one of those heavy duty airline type crates( that she HATES!!!) She has recently developed these wierd hard bumps on her head. not very big, white in color, and nothing comes out of them...yes, i tried to squeeze them they dont seem to bother her, but i dont want them to get out of control. any ideas of what it could be?? they are not anywhere else on her body, just on the top of her head. i know she panics when she is in the crate and drools alot, but eventually settles down. so if it was an allergy to the plastic it would be other places too, right??