April the 11th is traditionally known as the day of St. Antipas in Romania. St. Antipas was martyred in 92 AD. He was burnt to death in a bull-shaped altar used for casting out demons worshiped by the local population.
On this saints day, St. Antipas can cure even the most morbid of toothaches.
More on St. Antipas' martyrdom.
Antipas in the dictionary of the Bible.
A Troparion and an icon.