Who knows if some upper body workouts, especially for the forearms like holding 30 pound weights and walk with them. Bike position is very important to distribute weight accordingly and this way minimize the hand/ wrist pain.

If upper body workouts, push-ups, bike fitting, handle bar tape, gel gloves (which dont do crap), nothing helps then consult your doctor as you may have some hidden symptoms. Who knows maybe a visit to the chiro will do...

Good luck!