food allergy advice

Hi, I was on before about my wee son's allergies, i need some advice on a few matters if possible.
He was allergy tested by a chinese doctor who sent some of his hair away for analysis, it came back with allergies i knew he had, also with new ones i didn't know of such as wheat, dairy, gluten and citrus fruits and many more, the problem is i have been bombarding his body with new substitutes such as soya produce, goats cheese, rice milk and oats, these are all products he never had before and has been reacting with hives since last week, every new food i gave him made him react with hives, will i go back to his normal diet where he never had reactions, i dont know what to do, but he's not even two yrs old and i feel terrible, i'm still breastfeeding a night and morning feed, he used to eat like cheese and toast and cereal in the mornings and never had hives or act abnormally, now with all the new food within twenty minutes of eating them he comes out in hives. also if theres a remedy you think may correct the balance i would appreciate it, i live in northern ireland, my wee boy has red hair, pale skin, has respiratory allergies and is highly allergic to egg, blackcurrant and lentils, he throws them up and gets blotchy, the other new allergies i din't know about, also what do you think about the chinese method of hair testing for allergy, do you think it is accurate