I ve had a itchy skin that started back in December. I thought it was usual wintertime dry skin, so I babied it used extra lotions. Then in Feburary I started with a rash started on legs and the spread all over. I m wondering if my birth control could cause this? I ve seen a dermatologist who did a biopsy and it came back dermatitis contact or atopic. I saw an allergist and came back no food allergies just regular seasonal allergies which I ve had my whole life but are managed through loratadine or Zyrtec . I m having a hard time believing this us caused by those when the rash started when there still snow in the ground. I ve been on prednisone about a month with no real relief I stopped my b/c for about 14 days and it cleared up and restarting the rash had reappeared. Could I have a delay reaction to it when I switched brands late October ? .