How does the rash around the mouth cause

Perioral rash is an important manifestation of perioral dermatitis under normal circumstances. For perioral dermatitis, it is mainly caused by local allergic stimulation. For example, when eating something, it does not eat the mouth just paste around the mouth causing local allergic stimulation. This is an important reason, followed by our love of sweet mouth, the surrounding skin will also cause allergies. Therefore, for perioral rash, it is mainly caused by local allergic irritation. Therefore, when we treat patients with perioral dermatitis, we need to inform them to prevent various irritations, not always lick the skin around the mouth, and try to eat into the mouth and not paste it outside.