Hi doctors, I took the ear-phone during sleeping 2 weeks ago. The day after that I have had pain at my right ear helix. I did not notice this. Recently, I have seen a swelling in the helix at the site of the ear-phone with the size of 0,8cmx2cm, thickness of 0,3cm for 3 days. I have no pain longer now. Please give me your advice Thank you so much Kiem Nguyen