Yep. I do. You really CAN'T goof making CS, *especially* for topical use. You need ABOUT 30 volts +/- (so, 3, 9 volt batteries), 2 alligator clips, a couple feet of copper wire, and some PURE (at least .999- some people insist on .9999, but unless you were using a TON of it or using in an unusual manner (IV), I don't believe that it's vital. I've been using a .999 bar for years, without trouble) silver wire.
Under 30 bucks, total.
Then, use distilled water to make it if there is ANY chance you'll be ingesting it (again, not a big problem for topical use)
And you're set.
I "time" mine when I'm using tap water by watching the plume of silver... when it hits the bottom of the jar and begins to turn upward, I've found I have between 10-12 ppm. (I had a PPM meter, which has since died, but I did a lot of timing experiments with it) In distilled water, the process takes a lot longer and is much less visible (the reason to use it- you obtain much smaller "true colloid" particles, where the minerals in other water can cause the silver particles to "clump"- hence they're more visible). MY TIMING is now 1 hour for 2 quarts of distilled water.. again, giving me around 10 ppm.
But- most of my uses are on livestock and pets, and I've found that it's amazingly forgiving. If I forget and overdo it... it works fine. If I'm not sure of how strong the distilled water version is- it works fine.
No names, but a member either here or at TTOL (I really can't remember their name at the moment, darn it... hopefully they'll see this thread and if they feel comfortable, chime in) had the same issue you're having. IIRC, Nothing was working very well... was just keeping it at bay, but certainly wasn't "curing" it. She started using CS, and within 12 hours, the intense itching, which was driving her mad, stopped. Within a day, the problem was noticably improved- much better than in a much longer stretch of conventional Rx meds.
Oh, and if you want, I'll send you some- just cover my postage costs. PM me if you want...
(oh- and if your computer printer dies, don't toss it before you yank the power supply. At least as of now, they are almost universally 30 volts. A couple minutes with a voltage meter will show you which of the 4 wires extending from it are the ones which will provide you with 30 volts. The plus is already attached- and at least the one I pulled from my HP printer that died was in a nice, self-contained "cartridge"- it works great!)
Summerthyme