One type of azalea, which has small leaves and bright red flowers that bloom early (not red ruffle), is badly affected by something that is causing the growing tips to curl up tightly instead of opening. I see no traces of bugs, and other azalea types are fine. We have had normal rainfall. I live in central Florida.
Azalea Shoots Curling
Certified GKH Gardening Expert
It sounds like a pest of some kind is affecting your shrub, such as aphids or scale. These pests are both treated the same with a pesticide. I prefer neem oil myself because it is safe for people and pets and also addresses other issues the plant may have. Here is more information: