question: Yesterday my 61 yr old sister had itching on her scalp on the left side and later in the day a small bump appeared and in this morning she woke up with a terrible headache and there was a large lump on the side of her head. She went to the emergency room at Intermountain Medical Center in Salt lake City, Utah and was told she was having a migraine headache and was given Keflex and sent home with a prescription for more Keflex. The lump has gone down some and her headache is better. So what is the lump from I never heard of a migraine with a lump on the head. They told her it was on the outside of the skull.