Hearing voices?

I hear voices sometimes. I know they are not real. My therapist gave me some excercises to do where my "parent" is supposed to interview my "inner child" and ask them questions about their favorite music, favorite food and so on. Then I am supposed to nurture the child. I want to do it and I started it but it seems like it is making the voices worse. Now I hear them arguing and debating one another, which was not the case before- just obscenities. What should I do?