Sebaceous gland hyperplasia, minor illness, not in the way. I have it, too, but not around my neck, but on my chest. My treatment is to cut it off with nail clippers and then press it when I grind my teeth. For a moment, it was like being bitten by a big mosquito, but it didn't hurt anymore afterwards. Exaggerated is that even the scar could not be found the next day, and I forgot where it grew. The cut place never grew again, just like minimally invasive surgery. I cut the nail clippers directly, without alcohol disinfection or burning. Because the wound is too small, there is no infection problem. There are two noteworthy places, the first is to aim, in case it is crooked, it is easy to cut the skin next to it; The second is to be ruthless. Press your teeth as soon as your eyes are closed. Do not hesitate. If you press it, you will find it hurts, and then release it. As a result, it is very timid to cut off half and leave half. The above is my way to deal with this problem. No sequelae have been found so far, and it is safe and effective. Hehe, good luck!