If the leaves of a snowball hydrangea have dried out, will they grow back by cutting the leaves from the buds?

Hello folks, The leaves of our snowball hydrangea somehow dried out completely overnight. I know the Annabell snowball hydrangea is very greedy for water, but I haven't watered it for maybe three days. What have I done? I cut the leaves back to the buds? Will leaves grow back from the buds? Or is that…