In Aug 2016 my endo put me on 50,000 units of Vit D one time per week. I have had hives on inside of both forearms, numb lips, rash on my chest on and off since. I thought it was a food allergy. Today after I took it I thought I wonder if it's this Vit D. I saw at Dermatologist today and she had no answers. Told me to take Claritan in the morning & zertec in the evening for 2 weeks. If it isn't better than they will biopsy my skin. Anybody no how to stop this reaction? I read taking magnesium. Help please. Thanks in advance.