I wore a headset last night for some 1 hr. I don't know what happened, but after 2 - 3 hours after removing the headset, a little bump (like a mole and big in size) created inside my ear. It is paining but not so painful. (Attached the image for your reference). From last night (It's been some 12 - 14 hrs now) and this little black bump developed in a matter of an hour and not so pa I don't know what cause this and what medicines to take and the treatment for this. Please suggest and advise.