Hemicrania continua for the headache. When the symptoms of hemicrania continua are present, it's considered "diagnostic" if they respond completely to indomethacin. The efficacy of indomethacin may not be long term for all patients, as can eventually become ineffective. The factor that allows hemicrania continua and its exacerbations to be differentiated from migraine and cluster headache is that hemicrania continua is completely responsive to indomethacin. Triptans and other abortive medications do not affect hemicrania continua. In addition to persistent daily headache of HC, which is usually mild to moderate (and frequently severe), HC can present other symptoms. These additional symptoms of HC
Common raven sonorous quality than a crow's call. In North America, the Chihuahuan raven ("C. cryptoleucus") is fairly similar to the relatively small common ravens of the American southwest and is best distinguished by the still relatively smaller size of its bill, beard and body and relatively longer tail. All-black carrion crow ("C. corone") in Europe may suggest a raven due to their largish bill but are still distinctly smaller and have the wing and tail shapes typical of crows. In the Faroe Islands, a now extinct colour-morph of this species existed, known as the pied raven. White ravens are occasionally found