Urgent advice on rescuing a phal needed!

[Fuzzy]

Dear forum,

My phal is in a very, very sad state. It has basically no good leaves left, but has several healthy roots. It was blooming for a while, but all of a sudden the leaves started yellowing and withering. I cut off the spike and unpotted it. It is now sitting on top of its medium (1/2 sphag, 1/2 perlite/charcoal from repotme). What do I do now, how do I save the phal?? Is it even possible to save at this point?