Be very watchful of hives/swelling in your mouth or throat. These can quickly escalate to cause an airway blockage and then you may suffocate.![]()
I have some experience with hives that I can share. I've only had one incident with a full-body hives breakout and it was caused by some serious emotional distress over a situation I was in at the time. A quick shot cleared it up and it never recurred. However, I have had a chronic problem with hives over the last 3 years. The usual type of hives I get are deep swelling pressure hives, for example walking on a hardwood floor barefoot can cause me to get them on the soles of my feet. Or, pressure from clothing (brastrap, waistband) can also trigger an outbreak. Occasionally I'll get cholinergic hives when exercising or hot. They tend to happen more often when I am sick with a bad cold/flu and also around PMS/menstrual time.
After a lot of trial and error and the help of an allergist, I figured out that my hives are mostly caused by food additives, specifically tartrazine (FD&C Yellow #5) which is in a group known as azo dyes. I think that I was sensitized to these a few years ago when I took phenazopyridine for two weeks straight while fighting off a particularly bad UTI. That's the OTC medication that turns your pee (and saliva, etc) bright orange while providing a local anesthetic relief to the urinary tract.
As long as I avoid foods with these additives, I'm fairly hive free. Another very common cause of hives is salicylates, found naturally in many foods but also a common ingredient in skincare products and medications like aspirin. Other common food triggers are sulfites, benzoates, or foods high in natural histamine.
Anyway, there's some food for thought.![]()