Need Therapist for Daughter with Compulsions

Hi. My daughter is 11 years old-soon to be 12 and she has had numerous compulsions over the years. There was one point where she felt like to she had to do a nightly ritual before bed or else something would happen to her family. She's always been a very sensitive child and has had some challenges with anger over the years, especially toward her younger sibling. She used to come to me crying each night worrying about something happening to me or fearing she would be kidnapped. When this behavior was at its height (around age 8 or 9) she was in therapy for about a year, which seemed to help. She doesn't have a trauma history and has had a typical childhood. Most of the time she is happy, jovial, does well in school, and has friends. But she often goes to a really dark place, and it happens without much warning. She is also struggling with her self esteem which I know is typical for this age. I am the only one she goes to with her fears, angst and worry about her compulsions. She doesn't talk to her Dad about it, nor to friends or any other adult (since therapy ended a couple years ago). She seems to keep it bottled up and then she'll come to me and it'll just erupt.

As of late she has come to me a couple times expressing deep anguish about a new compulsion. She says that when she hears someone else sneeze, she feels tingling in her genitals. She says she can't stop the feeling and she even confided in me that she had been watching Youtube videos of people sneezing. When we've talked about it, I listen, reassure her that she's ok, and tell her that I want her to feel better and that we will get through it together. But to be honest, I am in over my head with this one. I don't know how to help her, and I'm worried about mental health overall. 

Can anyone recommend a therapist that specializes in helping adolescents overcome compulsive behaviors?