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.
3 doctors agreed: 1  Ear: Great question. 2  Weeks to Months: The perforation may heal in a few weeks, or may take up to a few months.Some perforations require intervention. 3  No: Your ear drum will heal independent of an ear plug, assuming that it will heal on its own. The vast majority of tympanic membrane perforations heal spontaneously assuming it is not due to a slag burn from welding. That injury sears the drum and usually won't heal on its own. Surgery is frequently needed. If in doubt see your doctor. ...Read more See 1 more doctor answer