Headache/Migraine and Skull Pain

My grandmother is 84 years old and has been having headaches/migraines for days at a time. The pain is usually on the left side of her head but she also has a pain in the back of her head. She described it as being hit in the back of the head by a baseball bat. She also seems to be sensitive to light when she has them. She has Fioricet but it doesn't seem to do anything. What could cause this and is there anyway to treat it?
Source: MD Health Forum - Medical Discussion Boards - Category: Consumer Health Advice Authors: Tags: Pain Source Type: forums