impaction/prolapse

[camalotte]

Hello All,
My good friend here Prop Joe seems to be having problem. This morning i noticed what i thought was a turd on his back, but upon further inspection found out it was actually still partly in him. I can tell for sure that he ate some of the sphagnum moss and that part of it is still inside him. I tried putting him in a "warm" bath and noticed he got more active and was trying to push it out but no luck. He was actually pushing so hard that he started to prolapse(as you can see from the photo). The prolapse has since receded but there is still the moss that has not passed. is there any advice as to what i should do? Should i wait another day or two and see what happens?
We just lost our 5 year old dog very suddenly to cancer and after the $5,000 vet bill have zero extra money. Anything we could try at home would be greatly appreciated.