Might suggest reverse BB curls, with a straight or EZ bar. Reverse BB curls are a very good exercise, which like so many good exercise, guy's seem to overlook. Lest stress on the wrist because of a more natural position for the hands (hang the hands from the side of the body and notice the position of the hands/wrist). Also might try a False Grip (thumbs over the bar) to see the results of that. The forearms can also gain from this exercise.
If wanting to, than return to regular curling after a few weeks. But you may still want to keep reverse curls in a bicep workout. Good Luck.