Hello,
Hives develop in response to an allergic reaction, by the release of histamine. The allergen can be medications, food, extremes of temperature, exercise and viral infections to name a few. So, therapy lies in identifying the causative factor and anti-histamines during the attack. If the allergen is from food, you will have to maintain a food dairy and observe which food, on consumption is causing this problem.
Hope This Helped and Do Keep Us Posted.
h.pylori
http://www.naturalnews.com/026943_food_bacteria_allergies.html
might explain also the timing of your reactions
Hi,
Sassy has some good advice above.
I am wondering if it takes a certain am't of time from when you ingest something for it to trigger at that hour? And something only eaten at night or late night?
C~
Have you by any chance seen a Naturopath. They will not take this lightly and should have more answers than a regular doctor. I can't imagine what could be happening to you. Maybe you have some allergies to your bed linen or soaps, or even clothing. It sounds like it is environmental or chemical what ever the cause.