It works!
The last couple of years, I've started getting 1-4 cold sores as part of my cycle.  I normally use an essential oil blend, but while it shrunk the sores it was so caustic that it caused my lips to swell and peel. This balm is so gentle, but still really effective. Right when I feel the telltale bump, I start applying the balm. It kept the sore from blistering and swelling, and the bump was gone within 48 hours. I don't recommend applying it all over like a lip balm, as it made my sensitive lips peel.
Rating: 5 stars