Erythema nodosum, also known as wine spot. It is a light red or dark red patch that does not fade when pressed, does not rise above the skin surface, is located in the dermis, and is composed of capillary network. After birth, erythema nodosum grows proportionally with the growth of the body, but the scope no longer expands. Erythema nevosum cannot fade away by itself. Besides affecting the beauty, erythema nodosum is generally harmless and can be treated by freezing if necessary. Erythema nevosum on the right side of the face