I recently got a tingling sensation on my lips. I was sure it is an onset of cold sore. I searched earthclinic and found various remedies including ACV, Ice and garlic. I soaked a cotton ball in ACV and place it on the cold sore. Later, I sliced garlic and rub it slowly. I stinged a lot, but it was worth. I also applied ice and numb the affected area. The next morning, I found no trace of cold sore, but only a little swelling.
Thank You Earth Clinic for saving me from so much of embarrassment.