Years ago I played in Florida, Mississippi and Alabama quite a bit and had to wipe my strings down between every song. Sometimes during a song if I got a chance. Went through a lot of Holiday Inn towels back then.
Wipe your string down regularly. Use naptha (Zippo fluid) or denatured alcohol. Be carefull with the denatured though, keep it off your guitars finish and fingerboard. AND NO SMOKING !!!.
Isopropol has water in it so it may not help much.
B.
PS, I used to boil my strings too, but lets not confuse the issue.
