skin disorders
Dermatophytid Reaction
Introduction
A dermatophytid reaction is the body's reaction to a dermatophyte (fungal) infection and is a skin eruption that appears on an area of the body that is not the area where the infection first began. (See also Overview of Fungal Skin Infections .) A dermatophytid reaction is not actually a type of Overview of Dermatophytoses (Ringworm, Tinea) . Rather, a fungal infection on one area of the body can cause an allergic skin eruption to appear on another area of the body that is not infected. For example, a fungal infection on the foot may cause an itchy, bumpy rash to appear on the fingers. These eruptions (dermatophytids, also called identity or id reactions) are allergic reactions to the fungus. They do not result from touching the infected area. The eruptions may appear on many different areas of the body at once. The eruptions are typically itchy. They may appear as Small, fluid-filled spots (on the hands or feet) Solid bumps Red, raised patches Deep, raised, bruiselike areas on the shins Pinkish red spots that resemble targets Red, raised swellings ( Hives ) 