Impetigo is a contagious skin disease that often occurs in children, but can affect people of all ages. It is caused by bacteria (streptococci or staphylococci). Impetigo is characterized by the appearance of yellow crusts or scabs on the skin, but blisters may also appear before this. These changes most often occur on the face, around the mouth and nose, but can appear anywhere on the body. Impetigo is treated with antibiotics.

This refers to the diagnosis of sensitization or an examination in which specific IgE are measured in the patient's serum. With the allergomicrogrid, a larger number of different specific IgE are measured simultaneously.

IgG is an acronym for immunoglobulin G. It refers to a type of antibodies produced by our immune system. Antibodies are important in defending the human body against harmful microorganisms. Antibodies are also involved in various allergic reactions.

S-tTG IgA is an acronym for a serological test for antibodies (type IgA) against tissue transglutaminase (tTG) in the blood. This test is often used to detect celiac disease. Antibodies against tTG increase in the body when a person with celiac disease is exposed to gluten. Therefore, the presence of these antibodies in the blood is a strong indicator of active disease.

Detritivous dermatitis or irritative contact dermatitis is an inflammation of the skin that occurs due to exposure of the skin to certain irritating substances, but it is not an allergy. A typical example of detritivous dermatitis is inflamed skin on the hands, which occurs due to excessive hand washing with soap.

This is about seborrheic dermatitis, in which impetigo (a bacterial skin infection) has additionally appeared secondarily.