EDIT: I'm not sure. From what I've been able to tell, the caps are a world-wide thing, meaning they don't focus on any one particular country's tradition. Red Nose dia isn't a world-wide event, so it wouldn't have as much meaning to those to don't know what it is.
posted over a year ago
"Red Nose Day" is when people do things wearing red noses and dress up and do activitys to raise money to help people in less fortunate countries. :)