How well will rogaine work for chronic telogen effluvium?

I'm 21, have been experiencing relatively rapid hair loss for the past year and a half ever since 3-4 months after a series of emotionally traumatic events. These events have stressed my mind and body day and night and have caused me to develope a heart problem and have very little sleep since. how well will rogaine work for CTE? I know it isn't FDA approved for it but from what i know, its not a very well understood condition. My derm recomended it as a last resort until the stress is resolved.