Reddit reviews The Pigeon Needs a Bath! (Pigeon (9))

here is a book about this very subject.

Edit: formatting fixed

Totally happened to us too. She got water in her eyes one day while we were washing her hair and that was it. She was terrified for months and months of getting her hair washed or even her head wet. I had a similar fear of water when I was her age after some aggressive fever treatments. Thankfully now she is quite happy to bathe. The solution came in the form of a book. She loves books and we were gifted a special book that really helped calm her. It is called "The Pigeon Needs a Bath by Mo Williams. Here is someone reading it and here is an amazon link. She really loves all of Mo's books but this one is especially good. We read the book while she bathed and I think having her problem understood by something external and kind of silly helped draw her out.