Migraine is a common form of chronic headache, which is often (but not always) found in half of the head (hence the word hemiplegia) and lasts for hours or sometimes days. The pain is often so strong that the patient seeks a quiet and dark room to calm down. Often the headache is accompanied by nausea and vomiting. Many times before the migraine starts there are some aesthetic symptoms (aura, migraine aura) such as flashes, lights or numbness in the hands or feet.