Now this might sound horrible, but when you feel a cold sore forming put ear wax on it and it will never grow. My whole family does this and it works great.
Preparation H: dab on when you feel the tingle and it won't form, or if you don't catch it in time it will keep it from swelling. Works for me.
All you have to do is this as soon as you feel it coming. At night when you go to bed just put a big chunk of vaseline on the spot. I usually do this for two or three nights. It NEVER evolves. I've had these things my entire life. I get them 4 or 5 times a year. I haven't had one in over a year because I catch it right away.
I wish more people knew about this! It's SO much cheaper than Abreva and other cold sore drugs and works fast.
When you first feel the symptom of a cold sore, with your finger swipe, from behind the ear and beside the nose, the natural body oils and apply it to the area where the cold sore is trying to form. Repeat the process as often as you think of it, and the cold sore will not evolve. (I have done this and it works.) You always have the solution with you.
Take L-lysine, found in the vitamin aisle. Take it as soon as you feel the tingle. Take 3 times a day. Usually the cold sore never develops.
When you feel a cold sore forming, make a paste out of Zest bath soap, let it dry, and rinse off. This will pull moisture out of the cold sore. Do several times a day.
Ever notice when after using bleach your hands are dry, cracked? When a cold sore is forming, before it weeps, put a dab of bleach on it. This will certinally pull moisture out of it.
Apply witch hazel to the cold sore as soon as you see it. This will stop it from growing.