The Perendale originated in New Zealand from crossing the Border Cheviot with the Romney breed. They are an open-faced, medium-framed breed that produces bright, lofty, long-stapled, medium-wool fleeces. Developed as an easy-care sheep, they are both hardy and highly adapted to marginal forage-producing areas.
It depends how badly the eardrum is ruptured. Mine ruptured a couple of years ago from a bad ear infection, and it took me at least 3 weeks to get the ringing out of my ear. Depends a bit of how good you protect the ear from pressure changes; usually between 2 - 4 weeks. If you really do have an ear problem, do NOT mess 'round.
A small tear or hole in your eardrum usually heals within a few weeks. Your hearing will usually get back to normal after the eardrum has healed. If a ruptured eardrum does not heal and is not surgically repaired, you may have permanent hearing loss. Keep your ear dry. Ask your healthcare provider how to keep your ear dry when you bathe or shower and when itâs OK to swim.