urticaria

noun

Urticaria is a skin condition that causes you to break out in pimples or red spots and is very itchy. Urticaria is a skin condition that causes you to break out in pimples or red spots and is very itchy. It is caused by a reaction to something you eat, touch or are allergic to. For example, touching a nettle causes urticaria.

Urticaria is also more commonly known as rash.