Ladyjane4rent, did you ever try imitrex injections for your cluster headaches? I read they work quickly & can relieve pain from a triggered headache. Was going to ask about them at my next apt (finally seeing a COMPETENT dr after several years of ignorant ones & misery with my clusters). Can't get anything over the counter to work except a tube sock tied as tight as it will go around my head & chip clips pinched between my fingers lol. If I can get a friend to graciously knock on my forehead with their knuckles until it passes, even better! I have imitrex in the pill form for my migraines but it just doesn't work fast enough for my headaches in clusters