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Uraemic pruritus (also called chronic kidney disease–associated pruritus) is a persistent itch that occurs in people wit...
31/05/2026

Uraemic pruritus (also called chronic kidney disease–associated pruritus) is a persistent itch that occurs in people with advanced kidney disease, particularly those receiving dialysis. The itch can be severe, often worse at night, and commonly affects the back, arms, head, or abdomen, significantly impacting sleep and quality of life.

Read more here: https://dermnetnz.org/topics/uraemic-pruritus

Nemolizumab is a targeted biologic therapy used in dermatology to treat conditions driven by severe itch, particularly m...
27/05/2026

Nemolizumab is a targeted biologic therapy used in dermatology to treat conditions driven by severe itch, particularly moderate-to-severe atopic dermatitis and prurigo nodularis (pictured). It works by blocking the IL-31 receptor, a key pathway involved in chronic itch and skin inflammation, helping reduce pruritus and improve skin symptoms.

Read more here: https://dermnetnz.org/topics/nemolizumab

Bed bugs are small blood-feeding insects that typically bite exposed skin during sleep, often causing itchy red bumps th...
20/05/2026

Bed bugs are small blood-feeding insects that typically bite exposed skin during sleep, often causing itchy red bumps that may appear in clusters or a line- sometimes called the “breakfast, lunch, and dinner” pattern. Interestingly, up to 70% of people may have little or no reaction to the bites, making infestations difficult to recognise.

Read more here: https://dermnetnz.org/topics/bed-bugs

Erythema multiforme is an immune-mediated skin condition characterised by distinctive “target” or bullseye-shaped lesion...
17/05/2026

Erythema multiforme is an immune-mediated skin condition characterised by distinctive “target” or bullseye-shaped lesions that often appear on the hands, feet, and limbs. It is usually triggered by infections (most commonly herpes simplex virus) and is typically self-limiting, although some cases may involve mucous membranes.

Read more here: https://dermnetnz.org/topics/erythema-multiforme

Local anaesthesia is the temporary loss of sensation in a specific area of the body, allowing dermatological and surgica...
10/05/2026

Local anaesthesia is the temporary loss of sensation in a specific area of the body, allowing dermatological and surgical procedures to be performed with minimal pain. It works by blocking nerve signals in the skin, and may be applied topically or injected, with lidocaine (lignocaine) being one of the most commonly used agents.

Read more here: https://dermnetnz.org/topics/local-anaesthesia

Skin prick testing is a simple and widely used allergy test that helps identify substances triggering allergic reactions...
06/05/2026

Skin prick testing is a simple and widely used allergy test that helps identify substances triggering allergic reactions such as hay fever, food allergy, asthma, or venom allergy. During the test, small amounts of allergens are placed on the skin and lightly pricked to see if a raised, itchy wheal develops, usually within 15–20 minutes.

Read more here: https://dermnetnz.org/topics/skin-prick-testing

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