In previous years I had cold sores all winter long but no more. They went away in two weeks after I changed my diet. I used to have to rely on Benadryl to stop the drainage from my sinuses. Since I have changed my diet, take dehydrated barley juice powder and drink carrot juice, my sinuses have cleared up. I now have energy to spare, work three days a week and most of the younger ladies on the job marvel at my energy. Tomorrow I will be 68 and still going strong.