Use a cotton ball to clean inside the cat’s ears. Never put any kind of object (not even a Q-Tip) in your cat’s ear.
After a thorough rinsing, lift your cat onto a large towel and fold it around him.
Rub as much water from their fur as possible
Long-haired cats may require the use of a blow dryer, but only if the noise does not terrify them. Set it on low and see if the cat will tolerate it.