The symptoms of an allergic reaction are many and varied. In addition, they are increasing steadily: the WHO estimates that 50% of the world population will be affected by allergies by 2050.

Urticaria is an allergy of the skin. It is characterized by the appearance of red, swollen, isolated or grouped pimples that cause itching.

Acute urticaria is allergic in origin and appears quickly after contact with the allergenic element. The buttons will be present for a variable duration: from a few minutes to several hours.