Isopropyl alcohol for cold sores
If you have so much cold sores as me (usually 3-4 bubbles at once), then here is my tip:
As soon as you feel the first tingling, cotton pad in the hand and isopropyl alcohol (70%) from the pharmacy on it.
Now take a deep breath, hold your breath (the alcohol dulls you with an otherwise pretty dolle) and press the (or the?) Cotton pad for 5 seconds.
Then the bubble is not so big, but remains SMALL and it does NOT BURN all week :)
Helps me 100%! In contrast to all these minicable little pies for way too much money from the pharmacy ...