http://www.kwan-jai.com sells an ingrediant called "berp" I believe which you mix with the pure ascorbic acid. I hear it is great as it has a bunch of minerals/trace minerals inside.
what you recommended and what I recommended are slightly different. yours is already in ascorbate form, mine is ascorbic acid mixed with baking soda which MAKES ascorbate. ascorbate is absorbed best as it is buffered. taking pure vitamin C, especially for outbreaks is bad news unless you make it into ascorBATE somehow. This is because it is acid, and in my experience, being acidic is part of the problem. so, we obviously do not want to treat it by eating more acid, etc.
Yours has minerals mixed in which is great. My advice recommends getting minerals from some other things, like Sang Whang's "bicarbolife". Truly amazing product! The mineral part of it, in my opinion, is simply alkalinizing the body. minerals=high pH.
The reason I make my own is because it is MUCH CHEAPER. like 1000 times cheaper or more for real. As I take it (at least) twice a day every single day of my life, spending money on those packets would be impossible unless I was a millionaire. hehe.
Anyway, you are on the same track of healing as myself. I haven;t had an OB for a looong time and before I became alkaline and gave up all the acidic crap like coffee, soda, alcohol, sugar, junk food, etc, etc,etc, I was having OB's all of the time.
For me, boosting the immune system with megadoses of vitamin C and embracing an alkaline lifestyle has "cured" me.