Hello. My husband has a pea-sized, red lump on the surface of his scalp, just above his ear. It is very close to the surface of his skin, as you can see small, non-raised veins in it. It does not hurt, does not produce fluid (though we haven't tried to puncture or squeeze it). It has grown over the last few months, starting as a small bump and is now about the size of a pea. He works outside and the location on his head is where his hat rests. Is this something that we should go to the doctor about? And if so, would it be best to see a dermatologist, or someone else? Thank you for your time.