That must have been a frightening experience for your daughter and you, as well. Consulting your pediatrician is the best way to determine the cause of this episode. It is possible that your daughter may have Raynaud's, which is sometimes called disease, syndrome or phenomenon. Cold temperature or stress can trigger an attack. During an attack. there is little or no blood flow to the affected body part. As a result, the skin may turn white then blue for a short time. About 5% of the U.S. population has Raynaud's. For most people with primary Raynaud's, it is more of a bother than a serious illness. Please keep us posted.