Rinse the negative in distiller water. When drying negative rolls I avoid fotoflow. A distilled water rinse works better. No touching the negs.
Avoid low humidity when enlarging....do not pull negs from a plastic sleeve creating a charge. Use an enlarger that resists dust migrating on top of the the neg after insertion of the carrier.
The LPL 7700 works well in this regard as does the Leitz 1c.