My son went into urgent care with hives and difficulty breathing. Three days later the hives continue even though he is taking Zyrtec, Benedryl steroids and an inhaler. His breathing is ok now, however, he woke up with swollen, painful hives on his feet and hands in adition to where he had them before : torso, scalp, ears and nexk. Should we go to emergency or wait to see an alergist. I might add he drinks lots of caffine and is getting ready for college finals.