Abstract
Acne is a chronic, noninfectious, inflammatory skin disease of the sebaceous glands and hair follicles. It affects both sexes regardless of age; however, it is most common between 11 and 25 years of age.
In about 10-15 % of patients, manifestations may occur at older age. Atopic eczema is an intensely itchy, chronic inflammatory skin condition.
The incidence of the disease has a progressive trend. In the Czech Republic, the prevalence is approximately 5-10 %.
A positive family history increases the likelihood of development of the disease in children.