I used to get fever blisters (cold sores) a lot! I probably had one at least every six weeks or so.  They are so aggravating.  First you feel the tingle and then the blisters pop up on your lips.  When they finally get here it still takes about 2 weeks or so for them to heal up. 

I asked my doctor if there was something I could take to help keep from getting them, but she said there wasn't.  So, I did some research online and found some things people have taken to either keep from getting fever blisters, or to help heal them faster.  There are several medicines that are supposed to help lessen the severity of the occurrences.   But, they are only for after you get the cold sores, not before.

I tried a lot of the things I saw on websites and what finally ended up working for me was Lysine.  Lysine is sold in the vitamin section of stores.  The bottle in the picture above was bought at Dollar General for just a few dollars and will last me 2 months.  I have been taking one 500 mg. pill a day for about 9 months or so.  Since then the only time I have had a fever blister is when I ran out of pills and skipped a little over a week of taking them. 

Now, I'm not promising this will work for everyone, but for me it's been a great preventative!