We almost all wear a bald almost all of the time. However many of the common baldies leave the default hair texture in place. This gives your "ruth wings" around your ears. Bad. So what to do? Wear your bald base, if it has ruth wings, then go to edit appearance, and select hair. There will be a texture. The default is a white spidery thing. Click on that, and replace it with the transparent texture from the library. Make copies from that bald base.
Designers... you should do this too with your bald bases. Most do, some don't.