I'm sorry to hear that you have had so much trouble recently with this facial rash! I will say that it sounds like you have done everything right so far, in that you have gone to see your dermatologist
and they have prescribed medications.
My strong advice would be to use the medications that your dermatologist gave you as prescribed and then follow up with her. Sometimes rashes are very hard to figure out, and the best method of attacking them is to keep talking and communicating with your dermatologist about this, as she is the expert here!
If you have particular concerns or doubts about the effectiveness of the treatment that she has prescribed for you, then I would recommend that you set up a visit or phone call to discuss that with her directly. I am certain she will be receptive to your thoughts and will work together with you to get you feeling better as quickly as possible.