I ve had thin scratches appear occasionally on my back during the night. I m not scratching (can t reach there), clean sheets, my husband does not seem to have the same issue, they sting and sometimes bleed, often two to three of them in a row. wondering what this could be from. Thank you.
Difficult to say without seeing directly, but it might be Tina infection. Chek your blood for diabetes mellitus. Local antifungal ointment application might be helpful.