That's probably not as helpful as it could be. It sounds to me like the plant has been allowed to sit in standing water for an extended period, or is being watered daily. Neither of which, are good for phals. They don't need anywhere near as much water as most people give them.
Stop watering it. For at least 10 days. Let it dry out completely.
That's where I would start. Post some pics if you can, so we can see what else might be going on.