If your human hair wig was dried, don’t worry, you can do that:
Clean it first, let it absorb some water.
Then use some hair conditioner. Massage for some time.
Rinse the conditioner off with some cold water.
Then add some hair conditioner again.
Let sit for 30mins.
Rinse off it with cold water.
Let it drying with natural air.
Last, use some hair essential oil.