<s>[INST] I have what looks like a zit on the back of my head and it has very fine white hair coming out of it, any idea what it is? I already had it removed by my GP and it grew back. The biopsy came back as benign but I am curious if there is any way I can get rid of it permanently. [/INST] Hello,You may need to have the area cut out more completely by a dermatologist. If you want it removed permanently your best chance is a complete excision.Regards </s>