Bad hives two years, covers body, can't breath, swells face, feet, hands, gets bad if benadryl (diphenhydramine) isn't taken at least twice a day. how to get rid of?

Chronic hives can be: difficult if not impossible to cure.The only chance you have is to consult with Dermatologist or an Allergy/Immunologist.They may help U discover the trigger and thereby eliminate exposure,find a defect in ur immune system and if not curable,will help with the management.Go to the experts for this very uncomfortable condition and good luck.