Vitiligo.........................

someone i know has vitiligo, she has a small patch of white in her armpit, is there a chance that it wouldn't grow?
And if it grows a little is it sure that it will infect her whole body?

I've had this for 7 years. There is chance it will speard everywhere. I've tried everything I could to get rid of it. Finally, someone else who had this problem told me about Chinese medicine. I've met 2 strangers who told me this has helped them.
Tell her to find a doctor who does alternative Chinese medicine. It's basically different herbs the doctors combines to help your body react nomally. Peronally I recieved herbs for improved circulation.
It's really helping me. It's stoped dpeading and skin colour has come back.

The reason this hapens is becasue her body id killing the pigment (colour). It's an auto-immune disease.

There is a chance that it wouldn't grow and it is not sure that it will infect her whole body.Any ways, I can tell you something about Vitiligo cure.
As regards Cure in vitiligo, Different people use the term 禄Cure芦 in different context. Some use this term for complete eradication of illness from the body, while others are concerned only with re-pigmentation of the existing spots.
If you mean complete eradication of the disease from you system, that is a tricky matter. Vitiligo results from a derangement of your normal defense mechanisms against infection. The body starts producing antibodies against pigment producing cells of its own skin. No definite causes are known, and so are the remedies. This is a generalized abnormality of your immune system, and there are currently no acceptable permanent means to halt this process.
The damage to pigment producing cells manifests as patches of skin, which have reduced, or no pigment. This is what bothers you, us and every one else.
You cannot cure or halt it, but you can manage the local manifestations (white patches) using topical or oral treatments.
If you disease is not widespread, and is limited you can go for a topical treatment. The one I used and found beneficial is the once form where I got this material

The patch may grow and if it does, it may spread to other parts of the body. The key is to find an appropriate treatment now to try to halt the vitiligo and/or to try and make the skin cells affected return to their original colour.
There are a variety of treatments available and I would suggest a topical treatment (ie a cream) for small patches.
I found this one on an interesting website that deals with acupuncture - the acupuncturist's daughter had successfully treated her vitiligo problem by using the recommended cream. See the website below: