It starts out as a bump then turns red and then white flaky. Some then go away and others turn into raised brown mole/sun spot like bumps. They don’t really itch, just a mild irritation. I don’t have any on my face... thank goodness! First noticed on a plane coming back from Montana. They are not contagious. I have not used anything new but was very sick about a week before they appeared. Nothing has worked on them from essential oils to prescription meds. Nobody seems to know what it is. I’m most concerned about the raised brown spots some of them turn into? Please help if you have any ideas.