Can warm compresses be used to relieve itching from hives?
Disease description:
After developing hives, the entire body breaks out in welts, which are extremely itchy. I heard that applying a warm compress can relieve the itching, but I wonder if that's really true. Could a warm compress possibly worsen the rash? What are the effective ways to alleviate the itching?
Doctor's answer (1)
Dr. Liu Wenmin
Urticaria is a common allergic skin condition primarily characterized by the appearance of red or skin-colored wheals on the skin, accompanied by intense itching. Applying heat compresses may improve local blood circulation and help alleviate localized swelling, thus possibly relieving the itching caused by urticaria to some extent. However, heat compresses can also raise local skin temperature, causing blood vessels to dilate, which may worsen the condition, especially in certain types of urticaria such as those triggered by heat stimulation, where heat application can exacerbate symptoms.
Cold compresses using ice packs or cold towels on the affected areas are recommended for patients, as they can help constrict blood vessels, reduce inflammatory responses, and relieve itching. Patients should also avoid activities that may elevate body temperature, such as hot baths, saunas, and strenuous exercise, and minimize physical irritation to the skin. If the itching is severe, patients are advised to use antihistamines, corticosteroids, or other medications under a doctor's guidance to control inflammation and alleviate symptoms.
During the recovery process, patients with urticaria should also avoid potential allergens to prevent worsening of the condition.
