Sore wrist or tweaked finger that needs support, but you still can't stop climbing?! Metolius's 100% cotton tape may be the solution to keeping you on the rocks.
1½" (3.75cm) x 15 yards (14.25m approx) should last for many routes.
Zinc oxide adhesive keeps it in place and is moisture resistant.
PS. If it still hurts, more tape is not the solution - see a doctor!