Am I using the right oil?? and a few other questions

Hi everyone I am brand new to this and I just picked up some Cold Pressed UNrefined organic sunflower oil.. is this a good oil to be using??

I suffer from nasal congestion nearly every day as well fatigue (possibly candida related) has anyone seen improvement with nasal congestion usings OP?? and/or Fatigue?

I also have recently started taking an SSRI (Lexapro) never had any prior experience with antidepressants.. has anyone done oil pulls while on an antidepressant?? I wanted to make sure this is safe.

I would greatly appreciate if someone could help me out with this..best wishes