Replied By Paula (Perth, Wa, Australia) on 07/01/2010
I've used the ice cube method also & it worked really well for me. I did it about 4 or 5 times per day for the first 3 days with only a single ice cube wrapped in a tissue. The longer you can tolerate the cold on your lip, the quicker it heals or the less severe the coldsore ends up. It seems to reduce swelling to almost non-existent & the virus really doesn't like the ice at all. A good follow-up is some fresh aloe vera dabbed on it straight after the ice treatment.