What happened to the asura you want to evict? Is he in your house? Is he gone now?
I remember in Vinaya a monk had problems with non human being, many cures didn't help, then he went to abattoir and drunk blood, it helped and then the Buddha allowed it in similar cases. It seemed that asuras or devas in general hate and go away of disgusting, stinking, dirty things. Anyway, in a harsh situation, hope everyone have the will and found a way to bear it
Please stop following me