I have what appears to be a sebaceous cyst at my jawline. It appeared after I gave birth to my 15 year old son, but it never got larger, until recently. Sometimes it feels as if it is affecting my ear. Occasionally I can squeeze it a little and some white stuff (like a zit) comes out, just a little, and its awful smelling.
Tithe scalp, ears, back, face, and upper arm, are common sites for sebaceous cysts. The viscous white fluid (resembling cottage cheese) , foul smelling is typical of a sebaceous cyst. But further diagnoses is very important by an oral physician. The treatment includes excision of the cyst in most of the cases. I advice you to get a check-up early so that your dentist can rule of any other possibilities. Take care.