Assistant principals help school principals with general administrative tasks. These vary from district to district and even school to school, but broadly fall into the areas of planning, coordinating services and maintaining order.n order to become an assistant principal, your surest path is to accumulate teaching experience and then earn a master's degree in education leadership or education administration.
Causes of a ruptured, or perforated, eardrum may include: 1  Middle ear infection (otitis media). 2  A middle ear infection often results in the accumulation of fluids in your middle ear.3  Pressure from these fluids can cause the eardrum to rupture. Foreign objects in your ear. 2  Small objects, such as a cotton swab or hairpin, can puncture or tear the eardrum. 3  Severe head trauma. 4  Severe injury, such as skull fracture, may cause the dislocation or damage to middle and inner ear structures, including your eardrum.
A perforated eardrum is a hole or tear in the eardrum. It can be uncomfortable, but usually heals within a few weeks or months provided your ear is kept dry and thereâs no infection. The eardrum, also known as the tympanic membrane, is a thin layer of tissue that separates the outer ear from the middle ear.A hole in the eardrum can be caused by: 1  a middle ear infection, if pus builds up inside your ear and puts pressure on your eardrum.2  an injury to the eardrum, such as a severe blow to the ear or poking an object such as a cotton bud deep into the ear. 3  a sudden loud noise, such as a loud explosion.our GP may prescribe antibiotics if your perforated eardrum was caused by an infection or if there is a risk that an infection will develop while your eardrum heals. You can reduce your risk of developing an infection by keeping your ear dry until it's healed.