Others have already suggested getting in the bath with your DD and I wanted to say that's what helped my DD! She loved the bath and then suddenly would get upset at the thought of the bath. I went in with her a few times and then she was happy on her own again. The first time I went in I got my DH to pass my DD to me and I slowly lowered her in, like put her feet in for a bit, then put her legs in, etc. If she started grizzling I pulled her back up a bit and waited for it to pass then moved her slowly down again. It seemed to work and the second time she went in slowly but with no grizzling until we moved to getting straight in. Then she was fine to be on her own. HTH!