Hydrogen Peroxide has worked great for my acne and periodic cold sores. Once or twice a day I swab my face with it after washing. I also rinse with it after brushing. I have not had a blemish or cold sore since!
I too have had cold sores all my life and am 50 yrs old now. I had a sore in the inside of my nose for 3 days , first I dapped peroxide.3% on the outside and the inside where I felt it sore and there was no change into the 3rd day. On the 3rd day I inhaled 3 or 4 puffs of a mix of half water and half .3% peroxide cheap kind, from a 2 oz spray bottle that you can buy for .50 in the toothpaste aisle where they have travel size items, and 2 hours later all the nose pain was GONE and no longer had a sore in my nose , it vanished. I also used Apple cider Vinegar. I take the pinch or 1/4th tsp of Baking Soda and 2 TBLS of APPLE CIDER VINEGAR in 4 oz of COLD WATER and it has lowered my heart rate from 117 to 72.This has also lowered my BLOOD PRESSURE from to 112/60 I feel full of energy and I do this before I eat first thing in the morning and last thing at night. I sometimes take it at NOON for a pick me up. I no longer have acid reflux/ GERD. I sleep and breathe better as I have sleep apnea.
... I have tried plenty of the remedies on this site and they have all worked. H202 on a cold sore healed within 48 hours just dipped a q tip in 3%h2o2 and held on for 5 min 4 times a day. Baking Soda and water to gargle for extremely sore throat with swollen glands gone in 1 day. I gargled for about 10 minutes with my head tilted back 3 times thru out the day. Wow is all I can say about this one. thank you all so much this site is a blessing.
My vanity for white teeth found me reaching for the peroxide 16 years ago. A side affect was that I was no longer experiencing cold sores (approx 6 a year). My regime was brushing teeth, gums, and tongue with peroxide a couple times a week. When I forgot to do this, the tingling sensation of an outbreak reminded me to do the peroxide treatment and no cold sore surfaced. There have been a few times that I was out of peroxide and got the cold sore but it was gone within 2 days of getting peroxide and the sore was very mild. Apply directly in addition to brushing the entire mouth. I've had two cold sores in the last 15 years. The one during my divorce and the other after getting unjustly fired from my job. Both were mild attacks.