Enanthem
Enanthem or enanthema is a rash (small spots) on the mucous membranes. It is characteristic of patients with viral infections causing hand foot and mouth disease, measles, and sometimes chicken pox, or COVID-19. In addition, bacterial infections such as Scarlet fever may also be a cause of enanthema. The aforementioned diseases usually present with exanthema and enanthema. Enanthema can also indicate hypersensitivity. See also
 Koplik's spots
 Strawberry tongue
 Forchheimer spots

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Symptoms and signs: Skin and subcutaneous tissue