Stranger Danger Ain't No Joke

I had been told by Elsa's pediatrician that somewhere around 9 months she would start get a fear of strangers. She has always been so outgoing, and would go to anyone. On Tuesday I stopped by my old building at the museum with her to visit. One of my co-workers took her down the hall to another co-worker's office, and the next thing i heard was crying. Yep, it is kicking in. The question is, should I use immersion therapy, or just hold onto her instead? Hmmmm.