How can i get rid of cold sores on my lips?

Change acidity level: As you know canker sore as all fungal infections live and reproduce in an acid medium meaning a low ph. Before taking any antifungal medication, i would like you to try rinsing and only rinsing 3 to 4 times a day specialy @ bed time with milanta or any antiacid liquid. I'm sure you will have a positive response within 48 hrs.

Valtrex/Denavir: The most effective medication today is Valtrex (valacyclovir) only at the beginning stage of the erruption or Denavir which is applied every two hours for three days. Both are prescription items. So you must get them from you physician or dentist.

Topical tx or laser: Cold sores can be treated with a topical such as zovirax (acyclovir). There are also oral pills you can take to lessen the length of time the cold sore is around. A dental laser can also be used to lessen spread of cold sore and length of time is lasts.