J.L.
I have two sons who both have allergy issues. My first son was allergic to dairy and soy. My second son is allergic to eggs, dairy, soy, peanuts, and tree nuts. I nursed both for 18 months. My pediatrician said that breast feeding is the best choice when you have and allergic child but you must cut all the things they are allergic to from your diet. With my second son this meant even items manufactured on the same equipment or in the same facility as the allergens. This seems like a very hard thing to do but with the right information and help it can be done. The bonus is you will be eating healther and your baby will be happy.
go to www.foodallergy.org there is tons of information including recipes. Also a handy booklet that can be invaluable when reading ingriedient labels. It is at this link. https://www.foodallergy.org/shoppingcart/CGI-BIN/msascart...
If you have insurance it will probably pay for you and your son to go to a nutritionist to help you adjust your diet. It is hard to change your diet but it is easier if you have help. Cutting all processed food out of your diet helps eliminate a ton of allergins.I found this website to be helpful to http://www.allergy.org.nz/about+allergies/food+allergy.html
Good luck
Jules