Allergic to allergy medicine. Doctor.

Respected Sir,I had been suffering from psoriasis since 2014 on my fingers both hands and right leg ankle. After taking medicines like xyzal,cetrizine,atarax and steroids (omnacortil-5mg),it got cured completely in fingers and partially on foot. 2019 Oct onwards I am suffering from Urticaria. In the beginning whenever I took head bath or food colors or aerated drinks it came on my forehead and fore limbs. After taking Ebast and Elina20 for 3 months medrol for 10 days, it got cured. In 2020-April I took cetrizine 1 tab for running nose. Within 1 hour I got severe urticaria all over my body. First time I noticed an allergy medicine caused severe urticaria. These medicines  (XYZAL, CETRIZINE, ATARAX, ELINA, BILASTINE, LEVOCETRIZINE, RELENT, MONTEC LC) when I took them for the first time, worked well. But when I repeat the same medicine for the second time (after 1 week or 1 month interval) it causes severe urticaria, full face swelling, vomiting and breathing problems. please help doctor.