My dsis who hadn't seen him for a week said it yesterday - she noticed around the eyebrows - I'd already noticed a line of dark hair that's grown from his hairline down to a scab on his forehead - then tonight in the bath dh noticed a distinct trail along the middle of his spine and I noticed a smallish tuft on his shoulder. All quite new and perplexing.
Possible causes? Or trip to the doc's?