My baby wont take a bath anymore!!!?

My daughter is 15 months old, shes awesome (just a side note) She loves the water and has always loved bath time. Last week I tried to put her in the bath and she flipped out, stood up and screamed the entire time. Nothing has happened that I am aware of that would make her hate it so much. I thought she just wasnt in the mood but we have tried 3 times since and shes just not having it! Has this happened to anyone else?? She also has eczema, so I thought maybe her skin was bothering her, but the baths are lukewarm and her skin has cleared up, so I dont think it would be a problem. Anyway, any advice I could get on how to get her to like the bath again would be great. I have tried getting in with her in my bathing suit but she is still just as pissed off! HELP!!