I wonder if anyone has any experience of this problem? My son's girlfriend developed an allergy about 18mths ago, after they moved house, and now has to take antihistamine tablets every day. She gets a skin reaction, with hives or wheals breaking out all over her body. They last about 10 minutes and are itchy.
This can happen several times a day, at home, at work or wherever she is. She says when she's on the antihistamines she doesn't get the marks on her skin but can still feel an itchiness beneath the skin. She has no clue as to what is causing it, there seems to be no common factor to the outbreaks at all re food, washing products etc. Any ideas?