Diagnosing a headache -- the key to its proper treatment -- can be tricky and time-consuming, according to Osama Abdel-Razek, MD, PhD, an assistant professor of otolaryngology from Suez Canal University in Egypt who is doing research at Upstate Medical University. He describes the differences among tension, migraine and cluster headaches and treatment options that range from over-the-counter drugs to nerve blocks and yoga.