Alison Ehrlich News Today

'It's a puzzle and we're constantly trying to fit the pieces together'

People with a condition called aquagenic urticaria break out in hives after contact from water.

A woman named Tessa Hansen-Smith regularly shares on social media the details of her rare allergy to water — she breaks out in hives if she comes into contact with it. Here's what to know.

Tessa Hansen-Smith, 25, is raising awareness about aquagenic urticaria, a condition in which people break out in hives after they come into contact with water. 

Risk increased with severity of atopic dermatitis across both groups, cohort study shows

Mice with obesity have fewer immune cells in their skin that protect against psoriasis-related inflammation, potentially explaining why obesity increases the risk of the condition

We tested 17 humidifiers in our Des Moines, Iowa lab to find the best options. Our top picks were evaluated based on setup, effectiveness, design, size, ease of cleaning, and value.

An expert reviewed allergens that are found in popular supplements and that have been implicated in allergic reactions, including contact dermatitis.

An expert reviewed allergens that are found in popular supplements and that have been implicated in allergic reactions, including contact dermatitis.

Is collagen good for skin — and is it better to ingest collagen through food or supplements? We’ve got the lowdown