Petechiae? Discoid Lupus? Rosacea?

I am a 37 yr old female looking for answers.  About two years ago, I developed an area of petechiae on my right cheek.  There are about 20 tiny red spots localized within a 1" diameter.  There is no discoloration between each spot.  A few are raised very slightly, but most are completely under the skin.  The spots have not changed since the first day I noticed them.  I was not on any medication at the time they appeared, nor several months prior.  I have had no other obvious symptoms that I know of.

I went to one dermatologist who told me it was probably rosacea (as this does run in my family); however, I haven't seen ANY images of rosacea that look anything like what I have.  

I got a second opinion from another dermatologist, who told me I had discoid lupus.  Since the area in question is on my face, she did not want to do a biopsy.  She ordered lab tests that all came back normal (liver, kidneys, etc.); however, I understand that discoid lupus cannot be detected by a blood test.  Again, the pictures I have found of discoid lupus look VERY, VERY different from what I have.  She prescribed a corticosteroid cream, but I'm scared to use it because I understand that it may aggravate rosacea... if THAT is what I have.

Any ideas?  I often sleep with my hand under my right cheek to help me breath (deviated septum).  Could that have caused petechiae?