Usually restricted to areas of skin contact. Contact urticaria, (nonimmunologic) Seconds to minutes Minutes to hours Toxin-mediated. Immediate reaction, with urticaria, erythema, edema ...

Contact urticaria can be nonimmunological, as seen with nettles, which rapidly cause painful papules due to the release of histamine, acetylcholine, and 5-hydroxytryptophan. In some cases ...

The Organising Committee is delighted to announce the seventh edition of the EAACI-ESCD Skin Allergy Meeting (SAM), Europe’s leading event dedicated to skin allergies. This year, SAM 2025 will take ...

In October 2022, she began experiencing hives when her skin came into contact with water. Her reactions were sometimes so ...

Active ingredients typically include N,N-diethyl-meta-toluamide (DEET) or picaridin. Reactions to topical repellents have ranged from contact dermatitis to urticaria. Exposure to DEET can produce ...

Medically reviewed by Brendan Camp, MD Hives and eczema are two of the most common skin disorders. Hives, clinically known as ...

Zevra to receive a 2025 New Treatment Award for MIPLYFFA™ at the 21st Annual WORLDSymposiumEight abstracts discussing data and clinical ...

Scratching an itchy rash really does make it worse. Now we know why, thanks to new research that uncovers how scratching aggravates inflammation and swelling in a mouse model of a type of eczema ...

Constantly scratching and picking at an itchy rash really does make it worse. But why? According to newly released research using mice as a model, scratching aggravates inflammation and swelling in a ...

Scratching an itchy rash worsens inflammation by triggering pain-sensing neurons and activating mast cells, creating a ...

An estimated 5,000 people in the United States are living with Eosinophilic Granulomatosis with Polyangiitis (EGPA), a rare ...