A hiccup is an involuntary spasmodic contraction of the muscle at the base of the lungs (diaphragm) followed by the rapid closure of the vocal cords. Usually, hiccups last for a few hours or, occasionally, a day or two. However, chronic hiccups are ones that continue for an extended period of time. Episodes that last for more than two days and less than a month are sometimes called persistent hiccups. On rare occasions, hiccups persist even lo  Read More

Optic neuromyelitis, also known as Devic's disorder or neuromyelitis optica, is a central nervous system disease that primarily affects the eye and spinal cord. Effects on the eyes are referred to as optic neuritis, whereas those on the spinal cord are called myelitis. The clinical manifestations are blindness in one or both eyes, weakness or paralysis in the legs or arms, painful spasms, loss of sensation, uncontrollable vomi  Read More