H. pylori as a pathogenic bacteria can cause the occurrence of urticaria, in clinical treatment to be antibacterial, you can choose the appropriate antibiotics such asloxacin capsules or roxithromycin capsules, with the protection of the gastrointestinal mucosa of the drug omeprazole tablets for treatment, and can choose antihistamine fexofenadine hydrochloride tablets or loratadine citrate capsules for oral use, and local topical application of furnace glycolic lotion. In terms of laboratory tests, a carbon breath test can be done to detect an overdose of H. pylori. If the test is repeated after a period of treatment and there is a change to negative, you can stop the drugs that protect the gastric mucosa and antibiotics and continue to take oral antihistamines for a period of time to strengthen the consolidation treatment.