How can you treat itching due to urticaria?

Antihistamines. For most patients antihistamines such as benadryl, (diphenhydramine) zyrtec, Allegra and Claritin are effective. If these are not effective second line treatment (off-label) could include Doxepin and singulair and h2 antihistamines, such as zantac. It is important to find the cause of the hives, and an allergist may be able to help.
Antihistamines. The most common treatment for itching associated with urticaria is antihistamines (cetirizine is a good example).