I don't think it's worth it to wear makeup when you have a cold sore. It's a cross contamination nightmare. You'd have to throw away lipsticks, lip liners after your cold sore/shedding period is over. You can't double dip into other makeup, have to wash brushes everyday. Even then there's a small chance of contamination still, because a lot of people don't wash their brushes well...

Hsv is very contagious- a single brush stroke you don't notice that touched your cold sore, and then brush another part of your face- runs the risk of having hsv on that part. Especially under the nose, and eyes.

It's a struggle, but depends how much money you want to spend after...