Erythema is an inflammation of the skin which appears either in the form of superficially inflamed patches, pimples, or lumps called nodules.

The accompanying symptoms are redness, some tenderness, and a slight itching. The eruption may disappear spontaneously leaving no trace, or the skin may burst, a watery discharge follow, and crusts form.

All parts of the body are liable to be attacked, but the head and extremities are more commonly affected.

Writers differ materially as to the cause of erythema; it is generally believed to be due to local influences, and to constitutional disturbances. Unclean bedding, hair long and matted, retaining the decomposing excretions from the skin, heat, cold, friction, and gastric irritation are exciting influences. Erythema is a non-contagious affection.

Treatment

If a cause can be determined it should be combatted; cleanliness is one great essential; the skin should be kept clean by frequent bathing, after which the oxide of zinc should be applied, either in powdered form or as an ointment.

Matted hair should be removed by clipping, and appropriate treatment is to be instituted if constitutional disturbances exist.