For those on daily preventatives, what worked for you?
I've gotten cold sores my whole life, but in the past couple years I developed an immunodeficiency and my cold sores went from twice a year to once every 3 weeks. My doctor prescribed me a daily dose of valcyclavir 500mg about a year ago which worked for about 4 months, but now they're back to every 3 weeks lasting about 5 days even with 1gm valcyclavir on top of the preventative.
For those who also get frequent cold sores, what preventative meds/dosages finally worked for you?