Coral reef burn

Feb of 15 I had a severe run in with the reef at Las Gatas. Many spines in my hands, legs and back side. Most of them were pulled with tweezers and then I sat on a vineger soaked towel to help disolve others, 6 months later I was having trouble with a reoccuring infection on my knee. Between my regular Dr and my dermatoligist I got tested for everything including cancer. But while on Las Gatas beach Feb of 16 two sea urchin spines worked their way out of my knee and I've had no trouble since. I always thought it was black coral but it was really sea urchins that were my problem.
Don't know if this relates to your particular problem or not. I didn't have much of a rash, just spines stuck down deep like splinters.