Hives Causes

My friend suddenly broke out in hives and he has not touched anything. All day, he had abdominal pain and her face begins to swell. The only thing he ate that night was a cup of ramen and Oreos. I need to know what causes this and if there is anything I can do. Also, is it contagious?

It is probably a good idea to have your friend see an allergist. It could have an allergy to ramen or Oreos. In addition, he / she could have a stomach infection that could be responsible for these symptoms.

it could be an allergic reaction to something like detergent or what he had ingested in the last two days I am not a doctor so he should probably get out sample

Sounds like a severe allergy, better knowledge of what cuz it could threaten the life the next time.