J.H.
Hi
I used to get them ALL the time. They started to come out in my 20's and I had to get about 5 of them surgically removed.
I went to a few dr's and dermos and not one of them could tell me what it was. I then found an AK DR. (Applied keinisiology, chiropractor) who speacializes in diet and emotions, hormons. And she told me it was corn!
Corn the veggie, corn syrup, corn startch, maltedextrin ....anything with corn. I had to take it out of my diet. I never had one again until I was pregnant with my daughter. I was craving sprite or 7up all the time. I hadent had any soda in years! And sure enough after about 2 weeks of endulging ....I had a HUGE cyst! Well they couldn't remove it while I was pregnant so they said to just wait till after I had my daughter. My AK DR said to just stop drinking the sodas and it would go away. And well she was right. a few weeks of NO corn it was gone.
I am not sure if its the samething with your son. But she was the only person who could tell me what was going on. she is now the first Dr my family sees for anything that happens...physically and emotionally. If you can find one or would like a referral I would be happy to give you one! :)