Acute hemorrhagic edema of infancy is a skin condition that affects children under the age of two with a recent history of upper respiratory illness, a course of antibiotics, or both.:833 The disease was first described in 1938 by Finkelstein and later by Seidlmayer as 'Seidlmayer cockade purpura'. Acute hemorrhagic edema of infancy is a skin condition that affects children under the age of two with a recent history of upper respiratory illness, a course of antibiotics, or both.:833 The disease was first described in 1938 by Finkelstein and later by Seidlmayer as 'Seidlmayer cockade purpura'.