Lysine: Lysine is a natural amino acid sold for $5 alongside vitamins and supplements. (It suppresses an opposing amino acid that increases viral growth.) You can take it at first symptom to GREATLY reduce the severity of the cold sore or even prevent it entirely. Some people even take lysine daily to inhibit them completely.
Lemon balm: Find a lip product containing lemon balm! Many people swear by Herpecin L -- also $5, and it also contains Lysine & SPF 30! Studies show lemon balm reduces swelling and redness. Again, use it at first sign and then about once every hour.
With this winning combination you can forever say goodbye to awkward cover up attempts and hiding that gorgeous face of yours!