now in most instances hives are not caused by contagious conditions for instance hives that are commonly caused by allergic reactions to foods or medications and allergies are not contagious stress related hives are not contagious either
Rice is bland, easily digested and also has a binding effect on the stool. However, the fiber in brown and wild varieties of rice may actually exacerbate diarrhea. The dietary objective during diarrhea is to eat foods that are bland and low in fiber, both of which are qualities of plain white rice.
Whey protein may help prevent diarrhea caused by bacterial infection. A whey protein concentrate made from cow's milk has been found to be safe for use as a medical food in people with bacterial diarrhea. More research is needed in this area.