I just got my first double bass (An Eberle plywood) and had my fist jazz quarter practice with it last night. Now I am nursing a nasty blister on my index finger. A classical guitar friend told me to pop it (I haven't yet), but I am not sure if that would the best way to promote callus (sp?) development. I want be able to practice before the next rehearsal but don't want to screw-up my finger worse than it is. Any suggestions? Thanks!