Some people may experience hives, also known as urticaria, just before or during their period. This is due to hormonal allergies from an increase in progesterone levels during menstruation.

The cause of rashes can vary, spanning allergic reactions, infections, autoimmune diseases and environmental irritants.

From eczema to allergic reactions to bug bites, here’s what common skin rashes look like in photos, and the symptoms that can help you I.D. the condition.

Unlike allergic hives, chronic spontaneous urticaria (CSU ... I emphasize that CSU is not a fleeting or “one‐off” skin issue but a persistent, often relapsing condition that can greatly ...

Discover 8 ways mast cell activation syndrome causes widespread symptoms from digestive issues to brain fog, often mistaken ...

a distressing and debilitating condition which causes welts (commonly known as ‘hives’) to spring up on the skin. Like Xolair, ligelizumab works by blocking IgE from binding to mast cells and ...

Pictures of hives, also known as urticaria, can help you to identify these raised, red, itchy bumps or welts. Causes include stress, infections, food or latex allergies, medications, and environmental ...

The nation's first cases of suspected side effects from vaccination against COVID-19 were reported after a patient developed hives, or itchy welts on the skin, and another complained of chills ...

Hives are a specific type of rash caused when tissues beneath the surface of the skin fill with fluid, causing raised, discolored (a change in skin tone), itchy bumps referred to as weals (or welts).