err..cant really see clearly..
if u meant the red thingy ...i think it's only infection or skin allergy...
i need a clearer picture to see it...
take a few more picture from other view...because that view can't see the protusion of the lump u mentioned...
try to take in different angle...side angle, and front angle...very hard to see la...

dun worry man...
upload more picture..i give free diagnosis~~
but need to take a few history from u.
1. any recent infection?- sore thoat, cough, sinusitis..
2. smoking?
3. even met similar things at other side of body?