After soaking, wrap it in a towel to absorb water.
Hang it to dry, don't put it outside and be blown by the wind =3=
Then spray some water or care liquid, hair oil for wigs and the like, hang it up, and then comb it slowly with an anti-static comb. Just cut off the part that can't be combed from bottom to top with scissors.
Don't do it by hand, and don't spray gel water. It will stick =3=
Don't fold it, it will deform. ...