I have had outbreaks of erythema nodosum since 1993. My dermatologist told me it was an allergic reaction to something in my blood stream. She suggested I pay attention to what I have been eating when I start to break out in these painful bumps. So I did. It was soy ... anything with soy in it is a big “no” for me! That was what triggered it. To this day, if I slip up and eat something with soy in it, I will break out on my legs. So I suggest to everybody out there who is stumped and cannot figure out why you're breaking out with these painful bumps, pay attention to what you're eating! It may be something as simple as what you're putting in your mouth! I hope this helps, because I know how painful this can be!

I have suffered with chronic idiopathic erythema nodosum (EN) for the last 19 years. It first started when I had a glandular fever for a few weeks. It began with tender, red lumps all over my lower legs. I have had numerous tests including several biopsies, which confirmed EN. I have also had X-rays to rule out tuberculosis (TB) and a colonoscopy, which ruled out Crohn's disease. My legs are tender and swollen, red and angry, and black and blue all at the same time. I have stopped worrying about how my legs look when I have to wear a skirt; it is something I can't do anything about. I have days where I can't walk, as the skin on my shins is so stretched and hot that only cold compresses and aspirin will help me. I have had prednisone and various steroids over the years, which only seem to aggravate it. My doctor is convinced that we have exhausted all the avenues to discover the underlying cause, and we will probably never know. It's a miserable, painful affliction. If you only experience it for a few weeks or months, count your lucky stars: There are those of us out here that have had this terrible condition for half of our lives.

My erythema nodosum (EN) started with my first pregnancy. I thought I had blood clots and soon found out that the hot, red lumps on my legs were not clots. They disappeared after a few weeks. I had a few occurrences during all three pregnancies as well as with my periods. The doctor felt that they were aggravated by hormones. I was put on prednisone, and eventually, they disappeared. Since my first outbreak about eight years ago, I have had many. Usually they occur about every three to five weeks. They typically can be felt like a bruise even before the lump or redness comes. Eventually the lumps come on my hips, buttocks, legs, arms, and occasionally my stomach. I had one large lump that appeared on my neck below my ear. It did not respond to the prednisone and seemed to migrate over the course of about six months. I had day-surgery to remove it from my lymph node to discover that it was not cancerous. I wish I had more answers.

I had erythema nodosum develop on both ankles in July of 2008. I visited a rheumatologist for confirmation of the diagnosis. My sed rate was only 2. The bumps disappeared after about three months, but I feel residual burning and pain in my feet. Sometimes it is so bad I cannot walk. Pain is relieved by using ice packs on my ankle or a Flector anti-inflammatory patch every 12 hours.

Our 14-month-old son has been sick for three weeks. It started with pink eye and ear infections, followed by diarrhea, which has now lasted more than two weeks. Then about a week ago, he got red bumps all over the insides of his legs and they began moving to the top and back of his legs. I have read that erythema nodosum (EN) can be related to severe (longer than two weeks) of diarrhea, which is what he has. His pediatrician said he has a stomach virus that has caused the diarrhea as well as the EN. We just have to let it go away on its own. It's been two weeks of nightly "blowouts," daily laundering of crib coverings and clothes, frequent daily baths, and lots of painful red bumps on his legs that are now turning from red to purple.