Pluck a nose hair
Folks love to go into their noses. But I tell people about the "triangle of death" —the triangle between your nose and mouth. If you go in there and pull that hair out, you get a little blood lost in there. Blood allows the bacteria in your nose to grow in there. Since veins in the facial area lack protective valves, the bacteria could theoretically enter your bloodstream and lead to infections elsewhere in the body. Don‘t ever pluck nose hairs.
If you have a grandpa-like hair coming out of your nostrils, snip it with curve-tipped scissors, with no sharp edges, or a grooming device. Do not pull the hair.
原文：http://blog.csdn.net/hellochenlian/article/details/43988427