I just answered your thread at the Introductions forum

If this is confined so far only at the feet, you might try soaking in tepid water with epsom salts. This provides magnesium to the tissues and improves circulation.

Diabetics lose magnesium thru the urine daily. This connection is not understood as to why, but it has been documented. So it might be a good idea to supply foods high in magnesium. Oral supplements are more problematic for children. I have a magnesium thread here:
http://neurotalk.psychcentral.com/showthread.php?t=1138
3 oz of unsalted almonds have 270mg of magnesium.
This website gives mineral content of many foods and can help you
with diet choices:
http://www.nutritiondata.com/facts/v...roducts/9873/2
This link is for edamame beans (a form of soy). These are very tasty and not expensive and supply good amounts of protein, magnesium and potassium. They taste buttery. Easy preparation too.

Also for anyone with autoimmune issues, exploring gluten intolerance is a good idea. In your country, there are many Celiacs, and an active Gluten free community. Intolerance to gluten may be acquired, or genetic. And one symptom is peripheral nerve damage.
This is a very comprehensive link to a member from this board, jccgf.
http://jccglutenfree.googlepages.com/
There are special sections on Diabetes type I and also peripheral neuropathy.

This is our Gluten forum:
http://neurotalk.psychcentral.com/forum13.html

jccgf (Cara) is very generous, so don't hesitate to PM her if you need further information.

You sound very dedicated to your son, and this is important, because in order to find a way to stop or minimize his pain, it will take effort and patience on your part. Much of what the members here do and share is not available from most doctors (they don't keep up on the research which is complex today). So copy things for them to read etc, because you will need them for testing, and advice about supplements safety etc with a youngster so young.