Zomig, a drug used to treat migraine headaches, may also provide relief for people who suffer from painful cluster headaches. Cluster headaches cause excruciating pain that recurs over a period of time. They typically affect one side of the head and can last from 15 minutes to over two hours. Researchers have found that Zomig, which is quickly absorbed through the nasal passages, may be an effective initial treatment for these headaches along with conventional treatments such as Imitrex or...