Our expert says:
CyberDoc
Dear Amanda
No the pill should not be in your system still. Try taking a long acting antihistamine like Zyrtec or Loratidine at night?
Your doctor can check your IGE with a blood test - if very high, she could refer you to an allergy clinic.
See http://www.allergy-clinic.co.uk/urticaria.htm
Dr Bets
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