I'd definately get some ear plugs. My friend has just got some, she got told by Susan Milan (her teacher) to get some because of all the practise she does.
I have a friend from orchestra who plays french horn, but hasnt been since xmas because while she was at NYO, she lost her specially made ear plugs, and because she has tinitus after all the loud playing without ear plugs, she can't come back to orchestra until her specially made ear plugs arrive from America, because other wise she's ruining her hearing, and her career, which would be awful, having just got a scholarship at the RAM.
I need to get some too!

Jacob.