It works great for cold sores
I used to buy this stuff in any pharmacy for $1 or $2 bucks years ago. Now if you go to wallgreens or cvs they have to special order it for a ridiculous price.  This is the only thing that really dries out fever blisters on my lips. put it on three or four times a day and then some carmex or chapstick and it keeps it under control.
Rating: 5 stars