👉 Erythematic is a medical term that describes a condition where there is an excessive amount of red blood cells in the body, especially in children. This condition can cause symptoms such as fever, chills, fatigue, and swollen ankles or feet. The term "erythematic" comes from the Greek word erythra (meaning yellow) and metaphorically refers to a state of being bright red or hot. It is often used to describe conditions where there is an excessive amount of