ALLMedicine Cholinergic Urticaria Center

May 21st, 2020 - Cholinergic urticaria (CholU) decreases affected individuals' quality of life because they must avoid stimuli including exercise and hot bathing. Although case reports have indicated that regular sweating activities are effective for CholU with hy...

Apr 2nd, 2020 - Cholinergic urticaria (CholU) was described first by Duke1 in 1924. CholU is a skin disorder characterized by highly pruritic wheals, 1-2 mm in size, with surrounding erythema. CholU is a chronic inducible urticaria, and usually appears after swea...

Mar 15th, 2020 - Background Cholinergic urticaria is one of the physical urticarias brought on by a physical stimulus. Although this stimulus might be considered to be heat, the actual precipitating cause is sweating. The definition and diagnostic testing of choli...

Mar 15th, 2020 - History Cholinergic urticaria appears rather rapidly, usually within a few minutes after the onset of sweating, and lasts from a half hour to an hour or more, with a mean duration of about 80 minutes. Cholinergic urticaria symptoms are sufficientl...

Mar 15th, 2020 - Approach Considerations Traditionally, an intradermal injection of either 0.05 mL of 0.002% carbamylcholine chloride (carbachol) or 0.05 mL of 0.02% (0.01 mg) methacholine has been used to produce a flare-up of cholinergic urticaria containing cha...

Oct 1st, 2009 - The recommendations for the definition and diagnosis presented in this position paper are the result of a panel consensus meeting held in December 2008 in Berlin. This consensus meeting was a joint initiative of EAACI (European Academy of Allergol...

May 21st, 2020 - Cholinergic urticaria (CholU) decreases affected individuals' quality of life because they must avoid stimuli including exercise and hot bathing. Although case reports have indicated that regular sweating activities are effective for CholU with hy...

Apr 2nd, 2020 - Cholinergic urticaria (CholU) was described first by Duke1 in 1924. CholU is a skin disorder characterized by highly pruritic wheals, 1-2 mm in size, with surrounding erythema. CholU is a chronic inducible urticaria, and usually appears after swea...

Mar 15th, 2020 - Background Cholinergic urticaria is one of the physical urticarias brought on by a physical stimulus. Although this stimulus might be considered to be heat, the actual precipitating cause is sweating. The definition and diagnostic testing of choli...

Mar 15th, 2020 - History Cholinergic urticaria appears rather rapidly, usually within a few minutes after the onset of sweating, and lasts from a half hour to an hour or more, with a mean duration of about 80 minutes. Cholinergic urticaria symptoms are sufficientl...

Mar 15th, 2020 - Approach Considerations Traditionally, an intradermal injection of either 0.05 mL of 0.002% carbamylcholine chloride (carbachol) or 0.05 mL of 0.02% (0.01 mg) methacholine has been used to produce a flare-up of cholinergic urticaria containing cha...

Apr 10th, 2015 - Any activity that raises core body temperature in a patient with CU can induce onset of lesions. One case report described a patient who experienced symptoms while undergoing hemodialysis, which resolved when the dialysate temperature was decrease.

Nov 13th, 2003 - Question I was interested in your previous Q&A on cholinergic urticaria. What about "aquagenic pruritus" without urticaria, when unbearable itching reaches a crescendo in the minutes after bathing? There are no skin changes, but the itching is acc...

Aug 27th, 2003 - Question I have intense generalized itching after each bath. What could be the reason? Filmon Haile, MD Response from Bradley E. Chipps, MD, FCCP The physical form of urticaria described in this question is cholinergic urticaria. This occurs in ap...