I have round sores on back that looks like a pimple there is a small amount of white stuff that comes out then looks like there is a stem like I can pull out then it bleeds scabs the I pick scab heals again takes awhile to fully heal
Hello,
The symptoms are suggestive of sebaceous cyst. A sebaceous cyst is a closed sac which contains a "cheesy" looking substance called keratin. Blocked sebaceous glands, swollen hair follicles and excessive testosterone production will cause such cysts.
Generally no treatment is required but they become painful then it means they are infected, then surgical excision by traditional wide excision, minimal excision, and punch biopsy excision may be required.
Hope it helps. Take care and please do keep me posted on how you are doing. Kind regards.
Sounds like a carbuncle to me, you should give it a heat treatment to bring the sutff to the surface