Denovir is a prescription med for cold sores. Comes in a little tiny tube, but lasts a long time cuz you only need a little. My doc Rxed it years ago - and it works really well. There may be newer OTC things out - or even Rx meds - but my husband and I have both used it and found it to be the best thing ever.
P.S. I do a lot more thinking about ice cream than drag queens - I was totally thinking Dairy Queen!
Lucy