I do wash hands before and try to keep the strings clean, but nothing seems to work.
Similarly - a couple of days after we bought the Jeep (brand new) we noticed that there were not stains but strange white-ish traces on the inside of the door on my side - around the handle. It's like I'm shedding layers of skin or something. Easily cleaned, but still, annoying. As someone who showers twice a day and constantly keeps his hands clean, that sucks.
And that's w/ me having been in the car maybe 2 or 3 times - so having placed my hand there may 6 times to open/close the door. So you can imagine what happens to the strings when I play a guitar for a few hours.
To be honest, when I put fresh strings on the strat, it's because I have plans for it and will most likely play it for at least 5 or 6 hours in a row. Don't know if that makes it more understandable...
Anyway, I've modified my diet a bit, and cut back on coffee, but I'm still overly acid it seems. I guess I'll have to talk w/ a physiologist eventually.
As a reminder - I've posted it before - but that's the kind of damage we're talking about. That's what my sweat did to the LP Junior bridge in a matter of few months.