There are a number of different coldsoretreatment options, and each and every person... will also aid minimize any flare ups.
A few coldsoretreatment methods are used to prevent the blisters...
ColdSore Symptoms – Caring For ColdSoresby
to bulging with new virus, you will get much swelling. Ice is a perfect coldsoretreatment... now especially with a good coldsoretreatment.
Once healing starts, you should quit using ice. Use heat instead...