Sorry in advance, posting here for the traffic... I have had spots on my back for the last year or so, I would often sling on the same jumpers while wfh so thought it may be that. To try and tackle it, over the past couple weeks, have been wearing fresh cotton t shirts daily, showering morning and night and scrubbing my back in the shower with soap and a scrubbing brush. New sheets and pillow cases too, changed twice a week. My upper back is better but still new, angry red spots are popping up every day! Can anyone help? I do lean against my pillows to work so wondering if it is friction, maybe I should work lying on my front (only half joking) as Im desperate to clear this... I'm a mid 20s woman ffs not a teenager 
pleeeease help