Hello, A patient with history of migraine may sometimes have headache lasting more than 72 hours with associated nausea and other symptoms and this condition is referred to as status migrainosus. The medications for migraine work best in the initial part of the starting of headache. once headache gets established it becomes difficult to control with routine medications. Best options are to give injections for control of pain and nausea. You have been given injection but probably you need to be given more often till the headache comes down. Steroid too are recommended and acceptable treatment because it needs to be given only for short period and so is not associated with typical complications seen with long term steroid usage. Good luck.