<s>[INST] i have this bump like a pimple on my neck that has been there for years when it gets to bothering me i will squeeze it and it goes down but there is white smelly stuff comes out, any ideas what it could be i dont have medical insurance so i cant go to a doctor. [/INST] Brief answerSebaceous cystDetailed answer appreciate your concernLooking at your history it seems to be a case of infected sebaceous cyst you need not worry it can be cured completely in my opinion you should start with a course of antibiotic to eliminate the infection and once it subsided you can go for surgery it's a very simple surgical procedure without much of complicationThanks for using Chat Doctor have a nice day </s>