The humane and advanced method is (re-anchoring).
Examine the demon’s behavior. Does it prefer left-handed touches? Does it whisper a specific syllable (like "Har" or "Vex")? These are echoes of its original master. You need to find what broke it. stray incubus guide
Say: "By the compact of the old way, I anchor you here. You will feed on my dreams only on the third night of the waning moon. You will not bruise. You will not stray." The humane and advanced method is (re-anchoring)