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Chronic spontaneous urticaria (CSU) is characterized by recurring hives and/or angioedema lasting for at least 6 weeks, while Chronic Inducible Urticaria (CIndU) is triggered by specific stimuli. A recent Turkish study analyzed 423 patients with different types of CIndU and found that isolated CIndU was more common than cases where CSU coexisted with CIndU. The study also identified demographic differences among CIndU subtypes, with cholinergic urticaria affecting younger male patients more frequently. Systemic reactions were observed in some subtypes of CIndU, such as cold urticaria and cholinergic urticaria, but not in CSU. Understanding the distinct clinical presentations of CIndU subtypes is important for developing appropriate therapeutic approaches. [Extracted from the article]

The article presents guidelines for the management of cold urticaria, a rare condition characterized by skin lesions and potentially life-threatening systemic reactions to cold exposure. The guidelines recommend limited paraclinical examinations, such as blood count and C-reactive protein tests, to rule out other diseases. The guidelines also propose a severity classification for cold urticaria and recommend the use of an ice cube test for diagnosis. Treatment options include antihistamines and, in severe cases, autoinjectable adrenaline kits and omalizumab. The guidelines were developed by a multidisciplinary working group and are available on a dedicated website. [Extracted from the article]