my partner noticed one about a year ago now i have 2 or 3 .I've been tested for diabetes 2 months ago and was all ok, I'm not on any medication
These are most probably infectious boils containing pus that grow in size and burst.
You need to have these tested and have a Culture Sensitivity Test of the Pus to look for the cause of this infection and the most effective antibiotic against this infection.
Please see a Dermatologist for an examination and a skin scraping test to look for an infection.
Treating this would cure this infection.
Kind Regards, Dr.Joshi
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You need to have these looked at by a Dermatologist and have a Scraping / Biopsy of these areas to look for a possible skin infection and know the cause of these raised areas.