Urticaria, its drug options include. The first aspect, antihistamines, H1 receptor blockers, including the first generation of paracetamol, the second generation of loratadine, cetirizine. The third generation of loratadine, loratadine and levocetirizine, as well as H2 receptor blockers, are used together with H1 receptor blockers, which have a synergistic effect, such as cimetidine and niretidine. In the second aspect, there are epinephrine in cases such as anaphylaxis, which is used in conjunction with epinephrine. The third aspect is that glucocorticoids can stabilize mast cell membranes while reducing the release of histamine, and also counteract the inflammatory response caused by histamine and other inflammatory substances. In the fourth area, drugs that reduce vascular permeability can be chosen, such as vitamin C that can be taken orally or intravenously, and calcium agents, such as calcium gluconate calcium carbonate, to reduce permeability for treatment. In addition, you can choose topical medications, such as glyburide lotion for external rubbing, anti-itch, astringent rash treatment.