How do you wash your puff?

For those of you who use cushions, how do you wash the puff?

I feel a bit uneasy about washing with detergent, so I just wash it with facial soap and dry it in the sun.

But if I do that, it seems like it gets a bit wrinkled... haha

How do you wash your puffs? I've heard that some people wash them with cleansing products.

Please recommend a way to clean it neatly and conveniently.