The best idea is to wait for a while and see if the damage is permanent before embarking on any winter burn treatment methods.
Juniperus Chinensis Blue Point is a good choice for privacy borders, windscreens, as well as accent and group plantings. Blue Arrow Juniper A narrow selection with bright blue foliage and tight compact branches. They are very adaptable and can tolerate any soil that is well-drained.
Blue arrow juniper turning brown blue arrow juniper turning brown Does well as a corner accent or as a screen.