what could be a cure for this allergy

My wife has a strange type of allergy. She has the from her birth time, she can't take milk because of calcium and not only milk whatever is made from milk, yogurt, cream, cheese and much more. It's not only milk but also citrus stuff like strawberries, lemons all the stuff that has vitamin C.

Can someone tell me what could be a permanent cure for this as she can't eat anything that she likes and what is the name of this problem?

[allmymarbles]

I had some very broad allergies, among them an allergy to vitamin C. I was treated by an MD kinesiologist and was cured of all of my allergies, and in jig time. This is a more modern treatment than going to an allergist. It has to do with the removal of blockages and is somewhat reminiscent of Chinese medicine, although the method was not devised by the Chinese.