What could be the bump behind my left ear?
Patient: I get a bump behind left ear..sometimes goes away and sometimes painful..I pop it like acne to relieve pressure and a thick sticky, creamy white substance comes out and it is extremely stinky and potent..what is this?  Or where do I go to get it checked out? I dont have a family doctor Doctor: Hi,This is likely to be an infected sebaceous cyst. This in not serious and can be easily treated. Keep the area clean and dry. Apply topical antibiotic cream or ointment available over the counter. If it does not clear up then you may need a minor surgical operation to remove it. Regards,Dr K A Pottinger