My dermatologists told me that I have an urticaria. She gave me a medicine for more than two weeks namely prednisolone 5mg tablet and bethametasone cream. Said medicine didn t work for me even preventing from eating eggs, chickens, eggplants, dried fist, sea foods and many others. My allergies appears for an hour then it will dissapear, but after 8 hours from taking the medicine it will re-appear. What will I do? Should I take antihistamine medine now even without my doctors prescription? Thanks