I woke up from a nights sleep on April 12th, 2024. I had an itch just above my angle and noticed a small black dot. The next day a rash appeared and later spread to my other leg . At that time I felt it would go away with no action on my part....I was wrong....its still on both legs. Any idea what caused the event and any help would be appreciated. I've tried many different inch medications and they have not helped. I've attached a couple of photos for your observation.