Positive Impact of Chloroquine on Delayed Pressure Urticaria
April 2007 | Volume 6 | Issue 4 | Case Reports | 445 | Copyright © April 2007
Kanokvalai Kulthanan MD, Narumol Thumpimukvatana MD
Abstract
Delayed pressure urticaria (DPU) is characterized by swellings that develop at sites of sustained pressure on the skin several
hours after the pressure is removed and can persist for days. DPU is generally difficult to treat successfully. Antihistamines
are usually not effective. We present the case of a patient with DPU who appeared to benefit from chloroquine. 
