Hello,
From the symptoms that you have mentioned,it sounds like hives.
Hives (medically known as urticaria) are red, itchy, raised areas of skin that appear in varying shapes and sizes. They have a tendency to change size rapidly and to move around, disappearing in one place and reappearing in other places, often in a matter of hours.
Take antihistamines like Benadryl or Claritin and apply calamine lotion on the hives.Also use mild steroid cream like Dermacort and if the symptoms persist then pls consult a dermatologist.
Hope it helps. Take care and pls do keep me posted on how you are doing or if you have any additional queries.Kind regards.
MY GIRLFRIEND HAD THIS AND THEN WOUND UP GETTING A RASH, THAT HASN'T GONE AWAY IN MONTHS, A FEW WEEKS LATER. HER ALLERGIST HAD TOLD HER THAT IF SHE HAD GONE IN SOONER HE COULD HAVE PRESCRIBED SOMETHING LIKE STEROIDS. I WOULD START BY GOING IN TO SEE AN INTERNIST.