What Could Be the Reason for Septal Pain (or Near Septum)?

i have burning pain inside my nose on one side and it's unbearable if i don't cover my nostril with cotton wool. at first, when i was at the doctor, i thought it's on my turbinate, but now i believe it's actually on my septum or on the walls of my bridge, near the septum. what could be the cause? doctors can't see anything wrong inside. could it be a small hematoma that is too small to be seen or in a hidden place? i have no diagnosis and no cure, yet i'm in so much pain. thank you in advance!

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