When I recently had a bad flare-up (see my post here) I got some Cetaphil Foaming Face Wash for redness-prone skin. That was prior to getting Soolantra, and it didn't help, and worse yet, it was heavily fragranced. I was surprised a company like Cetaphil, which is typically focused on being gentle and as hypoallergenic as possible would put fragrance in their products!
When I had my most recent dermatologist appointment, when they prescribed the Soolantra, the cleanser she recommended is the Vanicream Z-Bar. They're currently having supply issues and they're sold out everywhere I've looked.
