Lysine which can be found in pill form or in a topical form at any health food store and some grocery stores.
An ice cube pressed to the area for several minutes will decrease the blood flow to the area and reduce the chances of the sore spreading.
Tea tree oil will help it to dry out faster and also helps to disinfect it.
Hydrogen peroxide will help it to dry out and disinfect the area.
WARNING: DO NOT APPLY ANY OF THESE WITH YOUR HANDS.
Step 1: Killing the Cause
Step 2: Disinfecting the Area
Step 3: Sealing the Wound
Step 4: Healing the Skin a Bit Faster
Once it has scabbed over naturally and the new skin has flaked off you can use some vitamin e oil to help reduce scarring and promote the healing of your skin. It can be purchased at health food stores or if your thrifty rite-aid has it a lot cheaper for off brands and this is useful for other skin conditions also such as chicken pox and pimples. I hope that this instructable has been helpful.
Step 5: Untested Theories
food grade diatomaceous earth is known to absorb viruses and is used in water purification for this purpose. it could be used to absorb the fluid from the sore and mixed with tea tree oil could also dry out the sore so it heals faster. Funding being a factor i have not yet tried this method but i know that food grade DE has many other very good uses.