Wow that is some great information you provided. Thanks for the write up. I was unfamiliar with dehydroascorbic acid. Sounds interesting.
Just during this current outbreaks I took upwards of 15g of Vit C (in divided doses) before getting any digestive distress. It is of my understanding that during these times that are stressful for your immune system the body's needs of Vitamin C increases.
Also with some tips from earthclinic I have been applying a vitamin C "Paste" directly on the lesions. I usually open 2 - 1mg capsules of ascorbic acid with about 2 drops of water. Mixing in a little sodium bicarbonate lowers the acidity and sting a little but doesn't seem to remove too much effectiveness. In the last batch I also added just a drop or two of DMSO as well to improve the depth of adsorption. Upon the first application all of the little red "heads" had turned white. I try to do this once or twice a day and leave it on for at least an hour.
The next thing I am experimenting with is dissolve some vit c in pure water. currently 1 gram with about 1/4 ounce of water. I filter out the insolvables like magnesium stearate with a coffee filter. I then usually mix this 1:1 with DMSO and apply this throughout the day. Using this mixture when caught early I have prevented an outbreak from busting open. The healing process was much quicker too.
Last thing I am looking into is high dose IV Vitamin C. However, recent research is showing that liposomal Vit C may be just as good. I just ordered 30 packets of a popular liposomal vit c and it should be arriving soon. I am hoping it works as well as it is hyped.