I used to get these occasionally about
8 to 10 years ago. They were on my lower legs around the calf. For me they were large, red, hot and painful bumps. They would stay for a couple of months and then go away. When they would go away they left a purplish bruised spot that lasted many months. I was always in a constant unrelenting flare for about
15 years so I can't really say what exactly brought them on or why they stopped. I haven't had one in about
6 years now.