I bought a pair of Rotosound Swing Bass 66 strings from GC about a week ago. When I put them on, there was some kind of powder from them that made my sinuses go.. weird. My eyes got kinda irritated. I did have a little cold at the time, but that went away. now, When i play the strings, they give my hands the after feeling of them being dry and sticky. Is this caused by some kind of coating of the strings? I plan to give them a 30 minutes dip in the alcohol later tonight.