Erythema autotoxic (also known as periodic erythroderma) is a rare skin condition that is characterized by red patches on the skin that can be painful and itchy. The disease usually appears in children and adolescents aged 8 to 18 years, but can occur in people of any age.
The causes of autotoxic erythema are not fully understood, but it is known that the disease is caused by a disorder of the immune system. There are two types of this disease - primary and secondary. With the primary type, a person suffers from this disease, but with the secondary type, he does not. The reasons for the development of this type of erythema have not been established.