Burning sensation on left side of face, started from inside nose to eye. now its a line of burning sensation from my eye through my nose down my chin?

Facial pain: Although most likely this is not serious, i suggest you see your doctor for adequate diagnosis. Rarely, in young woman, the immune system can turn against our own myelin of the central nervous system. This may manifest as an intense facial pain (trigeminal neuralgia in demyelinating disorder). Once again, is rare, but worth discussing with your physician. He may decide MRI testing is necessary.